[Mailman-Users] Fwd: Mailing list lag to SOME users

[Kevin Carpenter]

Hi all.

Been casually fighting a problem for a couple of months now and have 
finally decided to ask for help.

I have a somewhat large mailing list, about 1700 users, that is 
generally working just fine.  However, some users are seeing LONG delays 
(like 4+ hours) on mail delivery while other users, in the same 
organization, get sub-minute delivery.  Specifically, the step 6 delay 
in the header analysis below is typically 2 seconds.

In the header analysis below please note that mail.seaplace.org and 
spoe.seaplace.org are just two names (DNS A records) pointing to the 
same box.  The postfix main.cf mydestination parameter includes both.

I highly suspect this is something within Postfix and hope the list's 
extensive experience might help.

Thanks in advance,

Kevin

Second:









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