[Mailman-Users] another stupid question about mailman's mail handling
J C Lawrence
claw at kanga.nu
Sun Apr 21 22:43:46 CEST 2002
On Sun, 21 Apr 2002 18:56:59 +0000
Jonathan Vanasco <jvanasco at hotmail.com> wrote:
> perl's mail::bulkmail will optimize smtp delivery by sending out
> chunks of emails within one domain at once, using multiple addresses
> w/one file in the same envelope...
> i was wondering if something like this was implemented, but i dont
> think so... so i'm wondering why its not.
Mailman sorts the target domains and then batches the list per the
SMTP_MAX_RCPTS as previously noted. Due to this target domains will be
clustered. Depending on whether the number of addresses within a
specific target domain is modulo SMTP_MAX_RCPTS, there may or may not be
other domains within a specific bundle (2.1 does a good job here, 2.1
does slightly better).
Note: This is actually a comparitively smaller optimization given an
intelligent and performant MTA ala Postfix or Exim. It much more
significant for Sendmail.
J C Lawrence
---------(*) Satan, oscillate my metallic sonatas.
claw at kanga.nu He lived as a devil, eh?
http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.
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