Lisa Muir writes:
On Aug 15, 2007 10:17 PM, Sam Varshavchik <[EMAIL PROTECTED]> wrote:But they may have different iptables setups. There are several variables to check out. A delay of exactly 30 seconds is the ident lookup expiring.Got a new one today after all this time, delay of exactly 90 seconds on SMTP connect to the message going. Is this DNS again (at first glance looks perfect) or does 90 seconds delay indicate something specific?
Must be DNS. The ident timeout is 30 seconds, sharp. This could be anything: forward or reverse DNS lookup on the IP address, or blacklist lookups, if you are using blacklists.
Could be co-incidential though that its 90 seconds, and just a server load issue that I need to resolve.
That's also possible if you've maxed out on the maximum number of SMTP connections. If so, though, you should see warning messages in syslog.
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