[Mailman-Users] slow "out" queue

[Anil Jangity]

It seems it is doing about 6000 users in 35 minutes. 
The problem seems to be that sendmail is doing one email connection per recipient.

I have these set in mm_cfg.py:

SMTP_MAX_RCPTS = 15
SMTP_MAX_SESSIONS_PER_CONNECTION = 50

It seems Qrunner isn't honoring those?



> 
> Look at Mailman's 'smtp' log. You undoubtedly have a huge backlog in
> the out queue because you aren't processing outgoing SMTP fast enough
> to keep up with demand. In the smtp log you will see entries like
> 
> Jan 20 09:41:14 2012 (17283) <message-id> smtp to listname for 223
> recips, completed in 3.500 seconds
> 
> You will observe that each entry's timestamp is equal to that of the
> previous entry plus this entry's 'completed in' time indicating no
> delay between messages. Each entry represents processing of one out/
> queue entry. You will probably also note that the processing rate is
> much less than the 64 recipients/second in the above message which is
> from a full VERP installation.
>