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Old 06-18-2012, 12:08 PM   #1
Registered: Nov 2003
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sendmail startup extremely slow

We have a CentOS 5.2 64-bit server that is running Sendmail 8.13 with MailScanner and SpamAssasin on it. Recently it was discovered the delivery of messages was taking a longer time than expected to complete. A restart of the the sendmail server has resulted in an extremely slow startup time. As of this posting, the sm-client has been 'starting up' for about fifteen minutes.

I have checked the messages an maillog files, and there are no apparent error messages within them. What would be causing this problem to occur, and how can I correct it?

Old 06-20-2012, 01:55 AM   #2
Registered: Mar 2010
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This happened to me when sendmail was configured for a domain other than the host machine's.
Old 06-20-2012, 02:22 AM   #3
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I would check /etc/hosts and /etc/resolv.conf for correctness...

Also, making sure ip6 is disabled(if it is unneccesary) may help dns lookup time, if that is what is happening.


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