Re: [exim] Limits on address expansion

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Author: Magnus Holmgren
Date:  
To: exim-users
Subject: Re: [exim] Limits on address expansion
On Saturday 10 February 2007 04:21, Kjetil Torgrim Homme wrote:
> On Fri, 2007-02-09 at 14:28 +0000, Alain Williams wrote:
> > I am adding something to an exim config that could result in a large
> > number (20,000) email addresses. It is a secondary college and the
> > ability to mail to a class or all students is wanted. The expansion will
> > be done through class-list lookup in a mysql database. Several other
> > complications of course (who can do it, don't auto-create new cyrus
> > accounts, ...).
> >
> > Is this something that exim (on a reasonably powerful Linux box) could
> > handle ? I can't see anything in the documentation that talks about this.
>
> Exim will process the recipients of the message serially, so it may take
> quite a while for the last student to get his copy. but Exim certainly
> won't have a problem with it, nor make a problem for its host.


Exim will route all recipients of the message serially before actually
delivering (transporting), so it may take a long while for any recipient to
get their copy, depending on how many recipients are remote. After routing,
local deliveries are performed serially, while up to remote_max_parallel
remote deliveries are performed concurrently.

-- 
Magnus Holmgren        holmgren@???
                       (No Cc of list mail needed, thanks)


"Exim is better at being younger, whereas sendmail is better for
Scrabble (50 point bonus for clearing your rack)" -- Dave Evans