[Mailman-Users] Large lists and Postfix

John Viega John at list.org
Tue Mar 16 22:30:19 CET 1999


I've set up mailman installs where the MLM was on a separate machine
from the MTA and the web server.  Of course, it was an environment
where all the machines used the same OS and were NFS'd together.  You
could do a little hacking w/ rsh, etc to get things to work in a less
homogenous environment.

On Tue, Mar 16, 1999 at 12:36:00PM -0800, Greg Stein wrote:
> bruce at hams.com wrote:
> > 
> > From: Dave Sill <ds-list-mailman at sws5.ctd.ornl.gov>
> > > I agree that mailman's web interface is excellent. And given the
> > > choice between an MLM with an e-mail only interface, and one with a
> > > good web interface, too, I'd usually prefer the latter. Unfortunately,
> > > it's not always practical for the list server to be co-located with a
> > > web server.
> > 
> > You have a point, but I think the best way to deal with this would be to
> > have Mailman become able to make use of a _remote_MDA_. The admin forms
> > could simply ask what host to use as the SMTP server for each list. That
> > would distribute the entire load of list delivery onto one or more
> > separate MDA hosts, leaving the server upon which Mailman resides with the
> > load of WWW service, bounce processing, and list management. The actual
> > subscriber lists should be on the same machine that performs web service,
> > so that web subscription management will work interactively. Mail delivery
> > can take place elsewhere. This leaves you with the task of hosting a
> > virtual domain for list reception and a web server on the same machine,
> > not much in terms of load but still possibly a pain to get through the
> > administration of your company. Note however that any unprivileged 486
> > that you sit on the outside of your firewall would be equal to the task.
> 
> There is an "SMTPHOST" configuration option. That would allow you to
> shove your outbound delivery over to another machine.
> 
> The webserver still needs to run an MTA for incoming mail.
> 
> In my setup, I have a mail machine (ns1) and mailing-list machine
> (cartman). Inbound mail is forwarded from ns1 over to cartman. cartman
> delivers outbound mail, but I could reconfig the system to point at ns1
> for outbound.
> 
> Note that this doesn't entirely meet Dave's requirement, though: you
> still have a web server on the same box as the MLM. This just shoves
> mail delivery elsewhere.
> 
> Cheers,
> -g
> 
> --
> Greg Stein, http://www.lyra.org/
> 
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