[Mailman-Users] send lots of mail to one server?

Mark Sapiro msapiro at value.net
Wed Apr 5 00:17:09 CEST 2006


Kim Leandersson wrote:
>
>I will soon send an anounce to around 8500 people and my first thougt
>was to put all those in a mailman list, mail this list and then mailman
>will divide this into nice little chunks so that the mail is being sent
>to a reasonable amount of people at the same time. How well will this
>work if 99% of the people are located at the same server? How big chunks
>and how fast will mailman deliver to my MTA (postfix)?


With totally default settings, Mailman will send 1 message with 500
recipients and repeat this aproximately 17 times until all recipients
have been sent. It will send to Postfix as fast as Postfix accepts the
data and responds. There are no throttling controls in Mailman.

If you set VERP_DELIVERY_INTERVAL = 1 in mm_cfg.py or set the list's
personalize attribute on (requires OWNERS_CAN_ENABLE_PERSONALIZATION =
Yes in mm_cfg.py), Mailman will send a separate message to each
recipient. You can also set SMTP_MAX_RCPTS to a number other than 500
in mm_cfg.py.


>Are there any
>good options to tune to get the mail to be sent out slow so that the
>receiving mail server don't treat me as a spammer (which I'm not :)


This should be addressed in your MTA if possible. Other than the above,
there are no real controls in Mailman.

-- 
Mark Sapiro <msapiro at value.net>       The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan




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