[Mailman-Users] Delivery to SMTP server very slow

Barry Warsaw barry at list.org
Thu Mar 18 15:25:38 CET 2010

On Mar 10, 2010, at 05:51 AM, Stefan Foerster wrote:

>Good news (kinda) - another list on that server just started to slow
>down, and this time, it is a very unimportant and small list (472
>members, 466 of them have mail delivery enabled), so I can take all
>the time in the world to try and debug this issue.

I agree with Mark that this sounds like a problem with the Python interpreter.
I just don't see what could be causing Mailman to slow down.  I think if you
want to continue to debug this, it will involve hacking SMTPDirect.py or
replacing it with a simpler but instrumented handler for the list in question.
Do you want to go down that route?  (Installing say Python 2.6.5 and
rebuilding Mailman might be an easier first step.)

>Do you think I can drop Barry a PM off-list and ask him for further
>advice if he doesn't read this? I'm really interested in debugging
>this, and as I said, this time I really don't care about the list
>delivery being slow.

I read this list, but usually just skim it and sometimes it can take a long
while to respond.

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