Hi All,
I am 'trying' to set SMART_HOST in sendmail to point to smtp-relay.gmail.com but when looking at the /var/log/maillog its going to mx203.inbound-mx.net. [192.110.255.243],
why???
my line from sendmail.mc define(`SMART_HOST', `smtp-relay.gmail.com') I did make in /etc/mail and service sendmail restart
This is the only SMART_HOST in the config file. I started with the default CentOS 7.7 sendmail.mc and have not added anything else. just changed teh SMART_HOST.
Why is mail relay to mx203.inbound-mx.net ????
Nov 22 08:16:00 lsi001 sendmail[9286]: xAMDFxlA009286: to= user.someone@gmail.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30197, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (xAMDFxjQ009287 Message accepted for delivery) Nov 22 08:16:00 lsi001 sendmail[9289]: STARTTLS=client, relay= mx203.inbound-mx.net., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256 Nov 22 08:16:01 lsi001 sendmail[9289]: xAMDFxjQ009287: to=< user.someone@gmail.com>, ctladdr=root@machine.somewhere.com (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120519, relay= mx203.inbound-mx.net. [192.110.255.243], dsn=2.0.0, stat=Sent (Queued!)
Thanks. How do find out why its going to the wrong place ?
Jerry
Great thought to check the generated file. It looks OK.
grep gmail sendmail.* sendmail.cf:DSsmtp-relay.gmail.com sendmail.cf.bak:DSsmtp-relay.gmail.com sendmail.mc:define(`SMART_HOST', `smtp-relay.gmail.com') dnl
host smtp-relay.gmail.com smtp-relay.gmail.com has address 64.233.176.28 smtp-relay.gmail.com has IPv6 address 2607:f8b0:4002:c02::1c
service sendmail restart again - and same behavior going to relay 203.inbound-mx.org
Jerry
On Fri, Nov 22, 2019 at 6:16 AM Jerry Geis jerry.geis@gmail.com wrote:
Great thought to check the generated file. It looks OK.
grep gmail sendmail.* sendmail.cf:DSsmtp-relay.gmail.com sendmail.cf.bak:DSsmtp-relay.gmail.com sendmail.mc:define(`SMART_HOST', `smtp-relay.gmail.com') dnl
maybe add a '.' to the end of the host name? that prevents it from applying assumed default domains to it
like this:
define(`SMART_HOST', `smtp-relay.gmail.com.') dnl
On Fri, 22 Nov 2019 at 08:22, Jerry Geis jerry.geis@gmail.com wrote:
Hi All,
I am 'trying' to set SMART_HOST in sendmail to point to smtp-relay.gmail.com but when looking at the /var/log/maillog its going to mx203.inbound-mx.net. [192.110.255.243],
That is weird.. and from all the other posts I could find on google about this domain not good. I am not sure who 'owns' this domain but it only shows up in malware posting and similar spaces. And here is where:
[smooge@smoogen-laptop ~]$ host -t MX smtp-relay.gmail.com.com smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.org. smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.net.
so something is adding another .com to your domain lookup. I would check the resolv.conf, your dns server or the configs elsewere
why???
my line from sendmail.mc define(`SMART_HOST', `smtp-relay.gmail.com') I did make in /etc/mail and service sendmail restart
This is the only SMART_HOST in the config file. I started with the default CentOS 7.7 sendmail.mc and have not added anything else. just changed teh SMART_HOST.
Why is mail relay to mx203.inbound-mx.net ????
Nov 22 08:16:00 lsi001 sendmail[9286]: xAMDFxlA009286: to= user.someone@gmail.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30197, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (xAMDFxjQ009287 Message accepted for delivery) Nov 22 08:16:00 lsi001 sendmail[9289]: STARTTLS=client, relay= mx203.inbound-mx.net., version=TLSv1/SSLv3, verify=FAIL, cipher=AES256-SHA, bits=256/256 Nov 22 08:16:01 lsi001 sendmail[9289]: xAMDFxjQ009287: to=< user.someone@gmail.com>, ctladdr=root@machine.somewhere.com (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120519, relay= mx203.inbound-mx.net. [192.110.255.243], dsn=2.0.0, stat=Sent (Queued!)
Thanks. How do find out why its going to the wrong place ?
Jerry _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
What does getent hosts smtp-relay.gmail.com show? What does your hosts line in /etc/nsswitch.conf show?
On November 22, 2019 9:55:23 AM CST, Stephen John Smoogen smooge@gmail.com wrote:
On Fri, 22 Nov 2019 at 08:22, Jerry Geis jerry.geis@gmail.com wrote:
Hi All,
I am 'trying' to set SMART_HOST in sendmail to point to
smtp-relay.gmail.com
but when looking at the /var/log/maillog its going to
mx203.inbound-mx.net.
[192.110.255.243],
That is weird.. and from all the other posts I could find on google about this domain not good. I am not sure who 'owns' this domain but it only shows up in malware posting and similar spaces. And here is where:
[smooge@smoogen-laptop ~]$ host -t MX smtp-relay.gmail.com.com smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.org. smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.net.
so something is adding another .com to your domain lookup. I would check the resolv.conf, your dns server or the configs elsewere
why???
my line from sendmail.mc define(`SMART_HOST', `smtp-relay.gmail.com') I did make in /etc/mail and service sendmail restart
This is the only SMART_HOST in the config file. I started with the
default
CentOS 7.7 sendmail.mc and have not added anything else. just changed
teh
SMART_HOST.
Why is mail relay to mx203.inbound-mx.net ????
Nov 22 08:16:00 lsi001 sendmail[9286]: xAMDFxlA009286: to= user.someone@gmail.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30197, relay=[127.0.0.1]
[127.0.0.1],
dsn=2.0.0, stat=Sent (xAMDFxjQ009287 Message accepted for delivery) Nov 22 08:16:00 lsi001 sendmail[9289]: STARTTLS=client, relay= mx203.inbound-mx.net., version=TLSv1/SSLv3, verify=FAIL,
cipher=AES256-SHA,
bits=256/256 Nov 22 08:16:01 lsi001 sendmail[9289]: xAMDFxjQ009287: to=< user.someone@gmail.com>, ctladdr=root@machine.somewhere.com (0/0), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120519, relay= mx203.inbound-mx.net. [192.110.255.243], dsn=2.0.0, stat=Sent
(Queued!)
Thanks. How do find out why its going to the wrong place ?
Jerry _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
-- Stephen J Smoogen. _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On Fri, 2019-11-22 at 10:55 -0500, Stephen John Smoogen wrote:
[smooge@smoogen-laptop ~]$ host -t MX smtp-relay.gmail.com.com smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.org. smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.net.
.w smtp-relay.gmail.com.com
smtp-relay.gmail.com.com has address 79.124.78.105 smtp-relay.gmail.com.com has address 79.124.78.101 smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.net. smtp-relay.gmail.com.com mail is handled by 10 mx203.inbound-mx.org.
inetnum: 79.124.78.0 - 79.124.78.255 descr: BlueAngelHost Pvt. Ltd country: BG => Bulgaria
created: 2016-02-17T14:40:17Z last-modified: 2018-07-17T00:58:15Z source: RIPE
org-name: BlueAngelHost Pvt. Ltd org-type: OTHER person: David John address: house 173. street, 4, E-block, ferozpur Road, Lahore, Pakistan phone: +14074597822 => "407 is principally Orlando, Florida."
Looks dodgy !
and, of course...
$ host smtp-relay.gmail.com smtp-relay.gmail.com has address 74.125.142.28 smtp-relay.gmail.com has IPv6 address 2607:f8b0:400e:c08::1c $ whois 74.125.142.28 ...
NetRange: 74.125.0.0 - 74.125.255.255 CIDR: 74.125.0.0/16 NetName: GOOGLE NetHandle: NET-74-125-0-0-1 Parent: NET74 (NET-74-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Google LLC (GOGL) RegDate: 2007-03-13 Updated: 2012-02-24 Ref: https://rdap.arin.net/registry/ip/74.125.0.0 ....
See below:
getent hosts smtp-relay.gmail.com 2607:f8b0:4002:c06::1c smtp-relay.gmail.com
# /etc/nsswitch.conf # # An example Name Service Switch config file. This file should be # sorted with the most-used services at the beginning. # # The entry '[NOTFOUND=return]' means that the search for an # entry should stop if the search in the previous entry turned # up nothing. Note that if the search failed due to some other reason # (like no NIS server responding) then the search continues with the # next entry. # # Valid entries include: # # nisplus Use NIS+ (NIS version 3) # nis Use NIS (NIS version 2), also called YP # dns Use DNS (Domain Name Service) # files Use the local files # db Use the local database (.db) files # compat Use NIS on compat mode # hesiod Use Hesiod for user lookups # [NOTFOUND=return] Stop searching if not found so far #
# To use db, put the "db" in front of "files" for entries you want to be # looked up first in the databases # # Example: #passwd: db files nisplus nis #shadow: db files nisplus nis #group: db files nisplus nis
passwd: files sss shadow: files sss group: files sss #initgroups: files sss
#hosts: db files nisplus nis dns hosts: files dns myhostname
# Example - obey only what nisplus tells us... #services: nisplus [NOTFOUND=return] files #networks: nisplus [NOTFOUND=return] files #protocols: nisplus [NOTFOUND=return] files #rpc: nisplus [NOTFOUND=return] files #ethers: nisplus [NOTFOUND=return] files #netmasks: nisplus [NOTFOUND=return] files
bootparams: nisplus [NOTFOUND=return] files
ethers: files netmasks: files networks: files protocols: files rpc: files services: files sss
netgroup: nisplus sss
publickey: nisplus
automount: files nisplus sss aliases: files nisplus
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Always Learning -
Barry Brimer -
Jerry Geis -
John Pierce -
Stephen John Smoogen