-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote:
On 4/19/20 12:28 PM, S.Bob wrote:
All;
I installed sendmail via yum, but if I test it like this:
The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 from localhost [127.0.0.1]
----- The following addresses had permanent fatal errors -----sbob@quadratum-braccas.com (reason: 554 5.7.1 Service unavailable; Client host [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; https://www.spamhaus .org/query/ip/50.243.150.81)
Is 50.243.150.81 your system's IP address? If so, as this shows, that IP is on spamhaus' blacklist of addresses. Thus, your sendmail is working fine. Problem is elsewhere.
anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
1. You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP (Comcast)
2. You are a business/residential customer who is allowed to send (not likely allowed to receive) SMTP and you have a domain elsewhere to receive replies to your email
3. You are a business/residential customer who is NOT allowed to send SMTP except for your ISP (Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your contracted services are not working because of .... and you will need to beable to work with them on testing and suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g. define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote:
On 4/19/20 12:28 PM, S.Bob wrote:
All;
I installed sendmail via yum, but if I test it like this:
The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 from localhost [127.0.0.1]
----- The following addresses had permanent fatal errors -----sbob@quadratum-braccas.com (reason: 554 5.7.1 Service unavailable; Client host [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; https://www.spamhaus .org/query/ip/50.243.150.81)
Is 50.243.150.81 your system's IP address? If so, as this shows, that IP is on spamhaus' blacklist of addresses. Thus, your sendmail is working fine. Problem is elsewhere.
anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP (Comcast)
You are a business/residential customer who is allowed to send (not likely allowed to receive) SMTP and you have a domain elsewhere to receive replies to your email
You are a business/residential customer who is NOT allowed to send SMTP except for your ISP (Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your contracted services are not working because of .... and you will need to beable to work with them on testing and suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g. define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On Apr 19, 2020, at 14:25, S.Bob sbob@quadratum-braccas.com wrote:
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
Looks like the sendmail service isn’t running. Maybe it not starting because of a syntax errors?
Thoughts?
I’d probably not use send mail in the first place. Postfix is the default, recommended MTA in CentOS 7, and its less likely to have mysterious syntax errors and easier to understand configuration syntax. (Sendmail’s config language is so complex that most people just use M4 and “compile” it into the sendmail.cf)
-- Jonathan Billings billings@negate.org
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote:
On 4/19/20 12:28 PM, S.Bob wrote:
All;
I installed sendmail via yum, but if I test it like this:
The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 from localhost [127.0.0.1]
----- The following addresses had permanent fatal errors -----sbob@quadratum-braccas.com (reason: 554 5.7.1 Service unavailable; Client host [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; https://www.spamhaus .org/query/ip/50.243.150.81)
Is 50.243.150.81 your system's IP address? If so, as this shows, that IP is on spamhaus' blacklist of addresses. Thus, your sendmail is working fine. Problem is elsewhere.
anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your contracted
services are not working because of .... and you will need to beable to work with them on testing and suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64 sendmail-8.14.7-5.el7.x86_64
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote:
On 4/19/20 12:28 PM, S.Bob wrote: > All; > > > I installed sendmail via yum, but if I test it like this: > > > The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 > from localhost [127.0.0.1] > > ----- The following addresses had permanent fatal errors ----- > sbob@quadratum-braccas.com > (reason: 554 5.7.1 Service unavailable; Client host > [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; > https://www.spamhaus > .org/query/ip/50.243.150.81) Is 50.243.150.81 your system's IP address? If so, as this shows, that IP is on spamhaus' blacklist of addresses. Thus, your sendmail is working fine. Problem is elsewhere.
anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your contracted
services are not working because of .... and you will need to beable to work with them on testing and suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:52 PM
I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64 sendmail-8.14.7-5.el7.x86_64
yum erase sendmail # undo what you did before... yum reinstall postfix # just in case it is messed up rpm -V postfix # lets verify if postfix is ok systemctl enable postfix # start on boot systemctl start postfix # start it now systemctl status postfix # see the status
# setup Xfinity / Comcast SMTP relay ISP edit /etc/postfix/main.cf around line 315 add relayhost = [smtp.comcast.net]
systemctl restart postfix # restart to make changes effective systemctl status postfix # check status
echo "Subject: sendmail test4" | sendmail your_xfinity_email@comcast.com # if this works, then test outside email
echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com # does it get there?
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote: > On 4/19/20 12:28 PM, S.Bob wrote: >> All; >> >> >> I installed sendmail via yum, but if I test it like this: >> >> >> The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 >> from localhost [127.0.0.1] >> >> ----- The following addresses had permanent fatal errors ----- >> sbob@quadratum-braccas.com >> (reason: 554 5.7.1 Service unavailable; Client host >> [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; >> https://www.spamhaus >> .org/query/ip/50.243.150.81) > Is 50.243.150.81 your system's IP address? If so, as this shows, that > IP is on spamhaus' blacklist of addresses. Thus, your sendmail is > working fine. Problem is elsewhere. > > anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your
contracted
services are not working because of .... and you will need to beable to work with them on testing
and
suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say
"Hey,
I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
my relay will be smtp.fastmail.com and it requires authentication and SSL, are there added settings in main.cf that will allow this?
Thanks
On 4/19/20 1:09 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:52 PM
I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64 sendmail-8.14.7-5.el7.x86_64
yum erase sendmail # undo what you did before... yum reinstall postfix # just in case it is messed up rpm -V postfix # lets verify if postfix is ok systemctl enable postfix # start on boot systemctl start postfix # start it now systemctl status postfix # see the status
# setup Xfinity / Comcast SMTP relay ISP edit /etc/postfix/main.cf around line 315 add relayhost = [smtp.comcast.net]
systemctl restart postfix # restart to make changes effective systemctl status postfix # check status
echo "Subject: sendmail test4" | sendmail your_xfinity_email@comcast.com # if this works, then test outside email
echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com # does it get there?
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote: > On 4/19/20 10:36 AM, Tim Evans wrote: >> On 4/19/20 12:28 PM, S.Bob wrote: >>> All; >>> >>> >>> I installed sendmail via yum, but if I test it like this: >>> >>> >>> The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 >>> from localhost [127.0.0.1] >>> >>> ----- The following addresses had permanent fatal errors ----- >>> sbob@quadratum-braccas.com >>> (reason: 554 5.7.1 Service unavailable; Client host >>> [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; >>> https://www.spamhaus >>> .org/query/ip/50.243.150.81) >> Is 50.243.150.81 your system's IP address? If so, as this shows, that >> IP is on spamhaus' blacklist of addresses. Thus, your sendmail is >> working fine. Problem is elsewhere. >> >> anything I can do to fix it? Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your
contracted
services are not working because of .... and you will need to beable to work with them on testing
and
suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say
"Hey,
I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Date: Sunday, April 19, 2020 13:47:32 -0600 From: "S.Bob" sbob@quadratum-braccas.com
my relay will be smtp.fastmail.com and it requires authentication and SSL, are there added settings in main.cf that will allow this?
What port is that delivering to -- that doesn't sound like port 25, which is the default that an MTA delivers to.
The postfix list may be a better place to ask these configuration questions. The general expectation there is that one has spent time going through the documentation.
OK thanks... I'll do some more reading and ping the postfix list
On 4/19/20 2:05 PM, Richard wrote:
Date: Sunday, April 19, 2020 13:47:32 -0600 From: "S.Bob" sbob@quadratum-braccas.com
my relay will be smtp.fastmail.com and it requires authentication and SSL, are there added settings in main.cf that will allow this?
What port is that delivering to -- that doesn't sound like port 25, which is the default that an MTA delivers to.
The postfix list may be a better place to ask these configuration questions. The general expectation there is that one has spent time going through the documentation.
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On Apr 19, 2020, at 3:47 PM, S.Bob sbob@quadratum-braccas.com wrote:
my relay will be smtp.fastmail.com http://smtp.fastmail.com/ and it requires authentication and SSL, are there added settings in main.cf that will allow this?
Yes. You’ll want to use your favorite search engine to look up "centos postfix relayhost sasl”. Ignore any of the wiki.centos.org http://wiki.centos.org/ links, they’re so out of date its embarrassing. (for example, the HowTos/postfix_sasl_relayhost wiki page tells you to use stunnel and an init service downloaded from a bugzilla post!)
The important thing is you’ll set up smtp_sasl_password_maps to point to a file that has your username and password so it can authenticate against smtp.fastmail.com:587 http://smtp.fastmail.com:587/.
You’ll have to make sure it goes to port 587 — traffic from Comcast customers to external port 25 is blocked.
-- Jonathan Billings billings@negate.org
On Apr 19, 2020, at 4:15 PM, Jonathan Billings billings@negate.org wrote:
On Apr 19, 2020, at 3:47 PM, S.Bob sbob@quadratum-braccas.com wrote:
my relay will be smtp.fastmail.com http://smtp.fastmail.com/ and it requires authentication and SSL, are there added settings in main.cf that will allow this?
Yes. You’ll want to use your favorite search engine to look up "centos postfix relayhost sasl”. Ignore any of the wiki.centos.org http://wiki.centos.org/ links, they’re so out of date its embarrassing. (for example, the HowTos/postfix_sasl_relayhost wiki page tells you to use stunnel and an init service downloaded from a bugzilla post!)
The important thing is you’ll set up smtp_sasl_password_maps to point to a file that has your username and password so it can authenticate against smtp.fastmail.com:587 http://smtp.fastmail.com:587/.
You’ll have to make sure it goes to port 587 — traffic from Comcast customers to external port 25 is blocked.
https://wiki.centos.org/HowTos/postfix_sasl_relayhost https://wiki.centos.org/HowTos/postfix_sasl_relayhost
I might have complained too loudly about the wiki site, so now it has somewhat more accurate information. Please give feedback if it doesn’t work for you.
These changes won’t remove your IP from the spamhaus DNSBL though — that’s something between your ISP and spamhaus. If you continue to get blocked I suggest you open up a case with your ISP because one of their IPs is being blacklisted and it is preventing you from sending email through their SMTP relay.
-- Jonathan Billings billings@negate.org
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 3:48 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
my relay will be smtp.fastmail.com and it requires authentication and SSL, are there added settings in main.cf that will allow this?
No, you are using Comcast / Xfininty per your IP address 50.243.150.81.
Please follow the instuctions.
Thanks
On 4/19/20 1:09 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:52 PM
I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64 sendmail-8.14.7-5.el7.x86_64
yum erase sendmail # undo what you did before... yum reinstall postfix # just in case it is messed up rpm -V postfix # lets verify if postfix is ok systemctl enable postfix # start on boot systemctl start postfix # start it now systemctl status postfix # see the status
# setup Xfinity / Comcast SMTP relay ISP edit /etc/postfix/main.cf around line 315 add relayhost = [smtp.comcast.net]
systemctl restart postfix # restart to make changes effective systemctl status postfix # check status
echo "Subject: sendmail test4" | sendmail your_xfinity_email@comcast.com # if this works, then test
outside email
echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com # does it get there?
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
> -----Original Message----- > From: Tim Evans > Sent: Sunday, April 19, 2020 12:50 PM > > On 4/19/20 12:38 PM, S.Bob wrote: >> On 4/19/20 10:36 AM, Tim Evans wrote: >>> On 4/19/20 12:28 PM, S.Bob wrote: >>>> All; >>>> >>>> >>>> I installed sendmail via yum, but if I test it like this: >>>> >>>> >>>> The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 >>>> from localhost [127.0.0.1] >>>> >>>> ----- The following addresses had permanent fatal errors ----- >>>> sbob@quadratum-braccas.com >>>> (reason: 554 5.7.1 Service unavailable; Client host >>>> [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; >>>> https://www.spamhaus >>>> .org/query/ip/50.243.150.81) >>> Is 50.243.150.81 your system's IP address? If so, as this shows, that >>> IP is on spamhaus' blacklist of addresses. Thus, your sendmail is >>> working fine. Problem is elsewhere. >>> >>> anything I can do to fix it? > Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ > and request that it be removed from the blacklisted IP's. > > However, looking at the headers from your message, it appears Comcast > may be your ISP, and this 50.243.150.81 IP address appears to be a > Comcast address, so you may need to contact Comcast tech support for > help in getting the blacklist designation removed. There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your
ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to
receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your
contracted
services are not working because of .... and you will need to beable to work with them on testing
and
suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say
"Hey,
I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say
"Hey,
I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
OK, I've fired up a new VM, new CentOS 7 install, now I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
Can you point me to how to set this up properly? Note that I won the psalm19pix.com domain, it's hosted at fastmail.com, and as far as I know requires SSL. Can I setup sendmail to use this as it's SMPT connection?
Thanks again...
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote:
On 4/19/20 12:28 PM, S.Bob wrote: > All; > > > I installed sendmail via yum, but if I test it like this: > > > The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 > from localhost [127.0.0.1] > > ----- The following addresses had permanent fatal errors ----- > sbob@quadratum-braccas.com > (reason: 554 5.7.1 Service unavailable; Client host > [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; > https://www.spamhaus > .org/query/ip/50.243.150.81) Is 50.243.150.81 your system's IP address? If so, as this shows, that IP is on spamhaus' blacklist of addresses. Thus, your sendmail is working fine. Problem is elsewhere.
anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your contracted
services are not working because of .... and you will need to beable to work with them on testing and suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
See other thread/reply.
-----Original Message----- From: CentOS centos-bounces@centos.org On Behalf Of S.Bob Sent: Sunday, April 19, 2020 3:11 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
OK, I've fired up a new VM, new CentOS 7 install, now I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
Can you point me to how to set this up properly? Note that I won the psalm19pix.com domain, it's hosted at fastmail.com, and as far as I know requires SSL. Can I setup sendmail to use this as it's SMPT connection?
No idea what all of that means. Contact support at fastmail.com? I am only helping with you sending mail from Comcast ISP.
Thanks again...
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote:
On 4/19/20 10:36 AM, Tim Evans wrote: > On 4/19/20 12:28 PM, S.Bob wrote: >> All; >> >> >> I installed sendmail via yum, but if I test it like this: >> >> >> The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 >> from localhost [127.0.0.1] >> >> ----- The following addresses had permanent fatal errors ----- >> sbob@quadratum-braccas.com >> (reason: 554 5.7.1 Service unavailable; Client host >> [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; >> https://www.spamhaus >> .org/query/ip/50.243.150.81) > Is 50.243.150.81 your system's IP address? If so, as this shows, that > IP is on spamhaus' blacklist of addresses. Thus, your sendmail is > working fine. Problem is elsewhere. > > anything I can do to fix it?
Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your
contracted
services are not working because of .... and you will need to beable to work with them on testing
and
suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say
"Hey,
I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On 4/19/20 1:14 PM, Jason Pyeron wrote:
See other thread/reply.
-----Original Message----- From: CentOS centos-bounces@centos.org On Behalf Of S.Bob Sent: Sunday, April 19, 2020 3:11 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
OK, I've fired up a new VM, new CentOS 7 install, now I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
I meant to say i OWN the domain
Can you point me to how to set this up properly? Note that I won the psalm19pix.com domain, it's hosted at fastmail.com, and as far as I know requires SSL. Can I setup sendmail to use this as it's SMPT connection?
No idea what all of that means. Contact support at fastmail.com? I am only helping with you sending mail from Comcast ISP.
Thanks again...
On 4/19/20 12:39 PM, Jason Pyeron wrote:
-----Original Message----- From: S.Bob Sent: Sunday, April 19, 2020 2:26 PM To: centos@centos.org Subject: Re: [CentOS] [Off topic] sending mail from Comcast was: Sendmail not working
I followed this guide:
https://pepipost.com/tutorials/install-sendmail-server-centos-7/
Sigh - bad examples for you.... undo if you can.
Postfix provides the "sendmail" utility.
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
now I get this:
# echo "Subject: sendmail test4" | sendmail kevink@psalm19pix.com [root@kdb-bugs auth]# echo "Subject: sendmail test4" | sendmail -v kevink@psalm19pix.com kevink@psalm19pix.com... Connecting to [127.0.0.1] via relay... kevink@psalm19pix.com... Deferred: Connection reset by [127.0.0.1] Closing connection to [127.0.0.1]
What does /var/log/maillog say ?
Thoughts?
On 4/19/20 11:08 AM, Jason Pyeron wrote:
-----Original Message----- From: Tim Evans Sent: Sunday, April 19, 2020 12:50 PM
On 4/19/20 12:38 PM, S.Bob wrote: > On 4/19/20 10:36 AM, Tim Evans wrote: >> On 4/19/20 12:28 PM, S.Bob wrote: >>> All; >>> >>> >>> I installed sendmail via yum, but if I test it like this: >>> >>> >>> The original message was received at Sun, 19 Apr 2020 10:02:56 -0600 >>> from localhost [127.0.0.1] >>> >>> ----- The following addresses had permanent fatal errors ----- >>> sbob@quadratum-braccas.com >>> (reason: 554 5.7.1 Service unavailable; Client host >>> [50.243.150.81] blocked using xbl.spamhaus.org.rbl.local; >>> https://www.spamhaus >>> .org/query/ip/50.243.150.81) >> Is 50.243.150.81 your system's IP address? If so, as this shows, that >> IP is on spamhaus' blacklist of addresses. Thus, your sendmail is >> working fine. Problem is elsewhere. >> >> anything I can do to fix it? Assuming this is your IP address, visit https://www.spamhaus.org/lookup/ and request that it be removed from the blacklisted IP's.
However, looking at the headers from your message, it appears Comcast may be your ISP, and this 50.243.150.81 IP address appears to be a Comcast address, so you may need to contact Comcast tech support for help in getting the blacklist designation removed.
There are a few situations here.
- You are a business customer with a static IP, and are entitled to send/receive SMTP by your ISP
(Comcast)
- You are a business/residential customer who is allowed to send (not likely allowed to receive)
SMTP and you have a domain elsewhere to receive replies to your email
- You are a business/residential customer who is NOT allowed to send SMTP except for your ISP
(Comcast) provided email.
Only you would know which on for sure is you, but it is very likely #3.
The advice provided previously is for case #1 - contact Comcast and inform them that your
contracted
services are not working because of .... and you will need to beable to work with them on testing
and
suggesting fixes. They have a dedicated support phone number (which they provided you if you are actually a #1 type customer - e.g. gigabit pro, metro Ethernet, etc.)
In case you are a #2 or #3 type customer, you may want to use a smart host configuration - e.g.
define('SMART_HOST','[smtp.comcast.net]') . For postfix, use relayhost = [smtp.comcast.net] .
Now when you send mail to that relay it will relay it. This is provided you are entitled to have
your email relayed - contact Xfinity customer service for help there.
If using this relay does not work, please post the exchange starting with the HELO (check your
maillog or do it by hand with telnet).
-- Jason Pyeron | Architect PD Inc | 10 w 24th St | Baltimore, MD |
.com: jpyeron@pdinc.us tel : 202-741-9397
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say
"Hey,
I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- `When you say "I wrote a program that crashed Windows", people just stare at you blankly and say "Hey, I got those with the system, *for free*".' (By Linus Torvalds)
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On Sun, Apr 19, 2020 at 3:10 PM S.Bob sbob@quadratum-braccas.com wrote:
OK, I've fired up a new VM, new CentOS 7 install, now I get this:
# rpm -qf `which sendmail` postfix-2.10.1-7.el7.x86_64
Can you point me to how to set this up properly? Note that I won the psalm19pix.com domain, it's hosted at fastmail.com, and as far as I know requires SSL. Can I setup sendmail to use this as it's SMPT connection?
IIRC properly, many mail services don't accept over port 25 any longer. It is due to a combination of spam and plain text data. Also see https://en.wikipedia.org/wiki/Message_submission_agent.
You have to use port 587.
Jeff
-
Jason Pyeron -
Jeffrey Walton -
Jonathan Billings -
Richard -
S.Bob