[Mailman-Users] Email response very slow using Mailman and sendmail

[Patil, Manjiri S]

Hi, 

We have internal Mailing List server running Mailman 2.1.9 and SENDMAIL
8.13.8. Whenever someone sent email to particular mailing list
(everyone at managemant.bu.edu)consisting app 300 users recipients receive
it after several hours. E.g see the following Email I sent on Apr14th at
3:19PM that came in at 6:09 PM and some received at 7:09 PM. I don't
understand why there is so much delay when sending mail to 300 users
mailing list. I clearly see in Outlook headers that the mail is sitting
on Mailman for approximately 2hours . 


OUTLOOK headers :
Received: from smgpub.bu.edu (smgsendmail.bu.edu [127.0.0.1])
>            by smgpub.bu.edu (8.13.8/8.13.8) with ESMTP id 
>m3ELf9u3001743;
>            Mon, 14 Apr 2008 17:41:09 -0400
>
>Received: from relay1.bu.edu (relay1.bu.edu [128.197.27.99])
>            by smgpub.bu.edu (8.13.8/8.13.8) with ESMTP id
>m3EJJgII032663
>            for <everyone at management.bu.edu>; Mon, 14 Apr 2008 15:19:42

>-0400


Here is the corresponding SENDMAIL Log.

 
>>Apr 14 15:19:42 smgpub sendmail[32663]: m3EJJgII032663:
from=<mpatil at bu.edu>, size=2721, class=0, nrcpt s=1,
msgid=<2DE012B637518B4BB1F1C1F4AA570FB802148BC1 at ENG-EXCHANGE1.ad.bu.edu>
, proto=ESMTP, daemon=MTA,  relay=relay1.bu.edu [128.197.27.99]

>>Apr 14 15:19:42 smgpub sendmail[32664]: m3EJJgII032663:
to="|/usr/lib/mailman/mail/mailman post everyone",
ctladdr=<everyone at management.bu.edu> (8/0), delay=00:00:00,
xdelay=00:00:00, mailer=prog, pri=32911 , dsn=2.0.0, stat=Sent

>>Apr 14 15:19:50 smgpub sendmail[32667]: m3EJJk3b032666:
to="|/usr/lib/mailman/mail/mailman post everyon e",
ctladdr=<everyone at management.bu.edu> (8/0), delay=00:00:00,
xdelay=00:00:00, mailer=prog, pri=32342 , dsn=2.0.0, stat=Sent

 

Also in /var/log/mailman/smtp log I always see for the list in question
request has processed for 1 receipients only however for other lists it
says for 2recips , 3recips etc. 

>>Apr 14 05:16:52 2008 (20425)
<mailman.1497.1208164611.20422.everyone at management.bu.edu> smtp to
everyone for 1 recips, completed in 0.014 seconds

>>>Apr 14 05:39:33 2008 (20425)
<mailman.1505.1208165972.20422.everyone at management.bu.edu> smtp to
everyone for 1 recips, completed in 0.011 seconds



Thanks for the help. 
Manz