[CentOS] slowness in sendmail - 60 second timeout

Simon Billis simon at houxou.com
Mon Feb 8 15:51:38 UTC 2010


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 at devcentos5x64.msgnet.com> SIZE=56
>> AUTH=root at 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 at pagestation.com
> geisj at 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 at devcentos5x64.msgnet.com>
>> SIZE=56 AUTH=root at devcentos5x64.msgnet.com 250 2.1.0
>> <root at devcentos5x64.msgnet.com>... Sender ok  >>> RCPT
>> To:<geisj at pagestation.com>  >>> DATA 250 2.1.5
>> <geisj at pagestation.com>... 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... 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 src]#
> 
> Check your DNS resolution settings - it may be dns timeout.
Sorry to be more specific - make sure that devcentos5x64.msgnet.com is
resolvable.







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