I am sending an email from my machine devcentos5x64. the transcript below (hangs for 60 seconds) at the line: MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com
The email succeeds - but I am trying to figure out the 60 second delay. Neither email server is busy. Nothing is waiting.
the DNS on both machines point to the same nameserver. The DNS responds very fast when looking up server names.
What else can I look for to remove the slowness or delay?
jerry
------------------------------------
date | mail -v -v -v -v geisj@pagestation.com geisj@pagestation.com... Connecting to [127.0.0.1] via relay... 220 devcentos5x64.msgnet.com ESMTP Sendmail 8.13.8/8.13.8; Mon, 8 Feb 2010 10:02:15 -0500
EHLO devcentos5x64.msgnet.com
250-devcentos5x64.msgnet.com Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-AUTH DIGEST-MD5 CRAM-MD5 250-DELIVERBY 250 HELP
MAIL From:root@devcentos5x64.msgnet.com SIZE=56
AUTH=root@devcentos5x64.msgnet.com 250 2.1.0 root@devcentos5x64.msgnet.com... Sender ok
RCPT To:geisj@pagestation.com DATA
250 2.1.5 geisj@pagestation.com... Recipient ok 354 Enter mail, end with "." on a line by itself
.
250 2.0.0 o18F2FMV002336 Message accepted for delivery geisj@pagestation.com... Sent (o18F2FMV002336 Message accepted for delivery) Closing connection to [127.0.0.1]
QUIT
221 2.0.0 devcentos5x64.msgnet.com closing connection [root@devcentos5x64 src]#
Jerry Geis sent a missive on 2010-02-08:
I am sending an email from my machine devcentos5x64. the transcript below (hangs for 60 seconds) at the line: MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com
The email succeeds - but I am trying to figure out the 60 second delay. Neither email server is busy. Nothing is waiting.
the DNS on both machines point to the same nameserver. The DNS responds very fast when looking up server names.
What else can I look for to remove the slowness or delay?
jerry
date | mail -v -v -v -v geisj@pagestation.com geisj@pagestation.com... Connecting to [127.0.0.1] via relay... 220 devcentos5x64.msgnet.com ESMTP Sendmail 8.13.8/8.13.8; Mon, 8 Feb 2010 10:02:15 -0500 >>> EHLO devcentos5x64.msgnet.com 250- devcentos5x64.msgnet.com Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250- DSN 250-ETRN 250-AUTH DIGEST-MD5 CRAM-MD5 250-DELIVERBY 250 HELP >>> MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com 250 2.1.0 root@devcentos5x64.msgnet.com... Sender ok >>> RCPT To:geisj@pagestation.com >>> DATA 250 2.1.5 geisj@pagestation.com... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 250 2.0.0 o18F2FMV002336 Message accepted for delivery geisj@pagestation.com... Sent (o18F2FMV002336 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 devcentos5x64.msgnet.com closing connection [root@devcentos5x64 src]#
Check your DNS resolution settings - it may be dns timeout.
Simon Billis sent a missive on 2010-02-08:
Jerry Geis sent a missive on 2010-02-08:
I am sending an email from my machine devcentos5x64. the transcript below (hangs for 60 seconds) at the line: MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com
The email succeeds - but I am trying to figure out the 60 second delay. Neither email server is busy. Nothing is waiting.
the DNS on both machines point to the same nameserver. The DNS responds very fast when looking up server names.
What else can I look for to remove the slowness or delay?
jerry
date | mail -v -v -v -v geisj@pagestation.com
geisj@pagestation.com...
Connecting to [127.0.0.1] via relay... 220 devcentos5x64.msgnet.com ESMTP Sendmail 8.13.8/8.13.8; Mon, 8 Feb 2010 10:02:15 -0500 >>> EHLO devcentos5x64.msgnet.com 250- devcentos5x64.msgnet.com Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250- DSN 250-ETRN 250-AUTH DIGEST-MD5 CRAM-MD5 250-DELIVERBY 250 HELP >>> MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com 250 2.1.0 root@devcentos5x64.msgnet.com... Sender ok >>> RCPT To:geisj@pagestation.com >>> DATA 250 2.1.5 geisj@pagestation.com... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 250 2.0.0 o18F2FMV002336 Message accepted for delivery geisj@pagestation.com... Sent (o18F2FMV002336 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 devcentos5x64.msgnet.com closing connection [root@devcentos5x64 src]#
Check your DNS resolution settings - it may be dns timeout.
Sorry to be more specific - make sure that devcentos5x64.msgnet.com is resolvable.
On Mon, Feb 8, 2010 at 10:14 AM, Jerry Geis geisj@pagestation.com wrote:
I am sending an email from my machine devcentos5x64. the transcript below (hangs for 60 seconds) at the line: MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com
The email succeeds - but I am trying to figure out the 60 second delay. Neither email server is busy. Nothing is waiting.
the DNS on both machines point to the same nameserver. The DNS responds very fast when looking up server names.
What else can I look for to remove the slowness or delay?
Since you've checked DNS, try looking at your queue intervals and timeout settings. If it's exactly a 60 second delay it's probably a timeout value somewhere. If it's up to 60 seconds, look for the queue settings in both /etc/sysconfig/sendmail and in /etc/mail/sendmail.cf.
You might also peek at the interfaces on the system as having more than one IP address can sometimes cause this slowness if not configured properly.
Also, check the hosts file :)
/ date | mail -v -v -v -v geisj at pagestation.com http://lists.centos.org/mailman/listinfo/centos
/>/ geisj at pagestation.com... http://lists.centos.org/mailman/listinfo/centos />>/ Connecting to [127.0.0.1] via relay... 220 devcentos5x64.msgnet.com />>/ ESMTP Sendmail 8.13.8/8.13.8; Mon, 8 Feb 2010 10:02:15 -0500 >>> EHLO />>/ devcentos5x64.msgnet.com 250- devcentos5x64.msgnet.com Hello localhost />>/ [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING />>/ 250-8BITMIME 250-SIZE 250- DSN 250-ETRN 250-AUTH DIGEST-MD5 CRAM-MD5 />>/ 250-DELIVERBY 250 HELP >>> MAIL From:<root at devcentos5x64.msgnet.com http://lists.centos.org/mailman/listinfo/centos> />>/ SIZE=56 AUTH=root at devcentos5x64.msgnet.com http://lists.centos.org/mailman/listinfo/centos 250 2.1.0 />>/ <root at devcentos5x64.msgnet.com http://lists.centos.org/mailman/listinfo/centos>... Sender ok >>> RCPT />>/ To:<geisj at pagestation.com http://lists.centos.org/mailman/listinfo/centos> >>> DATA 250 2.1.5 />>/ <geisj at pagestation.com http://lists.centos.org/mailman/listinfo/centos>... Recipient ok 354 Enter mail, end with "." on />>/ a line by itself >>> . 250 2.0.0 o18F2FMV002336 Message accepted for />>/ delivery geisj at pagestation.com... http://lists.centos.org/mailman/listinfo/centos Sent (o18F2FMV002336 Message accepted />>/ for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 />>/ devcentos5x64.msgnet.com closing connection [root at devcentos5x64 http://lists.centos.org/mailman/listinfo/centos src]# />/ />/ Check your DNS resolution settings - it may be dns timeout. /Sorry to be more specific - make sure that devcentos5x64.msgnet.com is resolvable.
from pagestation.com I can "ping devcentos5x64.msgnet.com" - this entry is in the /etc/hosts file on that machine. There is no official MX record for devcentos5x64.msgnet.com there is for pagestation.com.
on pagestation.com I have the /etc/hosts entry and /etc/mail/access entry for devcentos5x64.msgnet.com Perhaps its an MX lookup timeout value.
I am looking for a timeout setting or a way to place an entry in a config file that says "I know this server or machine", trust it and dont delay. Is there such a setting?
Jerry
Jerry Geis sent a missive on 2010-02-08:
/Sorry to be more specific - make sure that devcentos5x64.msgnet.com is resolvable.
from pagestation.com I can "ping devcentos5x64.msgnet.com" - this entry is in the /etc/hosts file on that machine. There is no official MX record for devcentos5x64.msgnet.com there is for pagestation.com.
I'm not clear that there is a dns/host entry for devcentos5x64.msgnet.com on devcentos5x64.msgnet.com. I would make sure that there is an entry for this host on devcentos5x64.msgnet.com. If there is then apologies for not getting it :-).
on pagestation.com I have the /etc/hosts entry and /etc/mail/access entry for devcentos5x64.msgnet.com Perhaps its an MX lookup timeout value.
I am looking for a timeout setting or a way to place an entry in a config file that says "I know this server or machine", trust it and dont delay. Is there such a setting?
I think that sendmail is checking the "MAIL" command - there are no timeouts that are specific to this rule afaik and sendmail would use a timeout of 1 second (which is doubled to a max of 4 mins) if this was an issue with bogus commands or repeated commands. From your description, it "feels" as if there is a problem with the name resolution of devcentos5x64.msgnet.com. You may wish to enable FEATURE(delay_checks)dnl in the sendmail.mc and rebuild the sendmail.cf file and see if it helps. If this makes a difference then I would look in the MAIL command checks.
Simon.
On Mon, Feb 8, 2010 at 8:12 AM, Jerry Geis geisj@pagestation.com wrote: [snip]
from pagestation.com I can "ping devcentos5x64.msgnet.com" - this entry is in the /etc/hosts file on that machine. There is no official MX record for devcentos5x64.msgnet.com there is for pagestation.com.
on pagestation.com I have the /etc/hosts entry and /etc/mail/access entry for devcentos5x64.msgnet.com Perhaps its an MX lookup timeout value.
I am looking for a timeout setting or a way to place an entry in a config file that says "I know this server or machine", trust it and dont delay. Is there such a setting?
Rebuild sendmail.cf on devcentos5x64.msgnet.com to *not* use DNS.
See http://www.sendmail.org/faq/section3/sf_highlight/configure+no+DNS#3.22
Jerry Geis wrote:
I am sending an email from my machine devcentos5x64. the transcript below (hangs for 60 seconds) at the line: MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com
The email succeeds - but I am trying to figure out the 60 second delay. Neither email server is busy. Nothing is waiting.
the DNS on both machines point to the same nameserver. The DNS responds very fast when looking up server names.
What else can I look for to remove the slowness or delay?
check reverse DNS, eg, looking up the PTR record for the IP's of both hosts.. if the subnet's in-arpa.addr zone is badly delegated, it could be timing out on that.
One of the security features of sendmail is the REVERSE lookup. If sendmail cant reverse lookup and the entries dont match, no mail.
You didnt specify whether devcentos5x64.msgnet.com is an internal host and there is some other mailserver higher up the stream.
If so, use:
define(`SMART_HOST', `MAIL_SERVER_UPSTREAM')
This will solve many problems for a lot of setups.
Jobst
On Mon, Feb 08, 2010 at 10:14:29AM -0500, Jerry Geis (geisj@pagestation.com) wrote:
I am sending an email from my machine devcentos5x64. the transcript below (hangs for 60 seconds) at the line: MAIL From:root@devcentos5x64.msgnet.com SIZE=56 AUTH=root@devcentos5x64.msgnet.com
The email succeeds - but I am trying to figure out the 60 second delay. Neither email server is busy. Nothing is waiting.
the DNS on both machines point to the same nameserver. The DNS responds very fast when looking up server names.
What else can I look for to remove the slowness or delay?
jerry
date | mail -v -v -v -v geisj@pagestation.com geisj@pagestation.com... Connecting to [127.0.0.1] via relay... 220 devcentos5x64.msgnet.com ESMTP Sendmail 8.13.8/8.13.8; Mon, 8 Feb 2010 10:02:15 -0500
EHLO devcentos5x64.msgnet.com
250-devcentos5x64.msgnet.com Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-AUTH DIGEST-MD5 CRAM-MD5 250-DELIVERBY 250 HELP
MAIL From:root@devcentos5x64.msgnet.com SIZE=56
AUTH=root@devcentos5x64.msgnet.com 250 2.1.0 root@devcentos5x64.msgnet.com... Sender ok
RCPT To:geisj@pagestation.com DATA
250 2.1.5 geisj@pagestation.com... Recipient ok 354 Enter mail, end with "." on a line by itself
.
250 2.0.0 o18F2FMV002336 Message accepted for delivery geisj@pagestation.com... Sent (o18F2FMV002336 Message accepted for delivery) Closing connection to [127.0.0.1]
QUIT
221 2.0.0 devcentos5x64.msgnet.com closing connection [root@devcentos5x64 src]#
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