[Mailman-Users] Extremely High Membership lists

[Neil Cooler]

Hi.

I was recently given the task of "upgrading" our mailing list software
from majorodomo to either lyris or mailman.  We currently have at most
15,000 subscribers on about 20 or 30 majordomo lists. After evaluating
both lyris and mailman, I have chosen mailman, because it seems to do
just about everything that Lyris does, only smarter, and because I'm an
open source zealot.  This morning I put linux on a Dell Poweredge 2300
Server (dual pentium II 400 processors), and installed mailman and a few
other things on the server.  I have now recieved notification that we
will be adding well over 400,000 subscribers to our current base.  

First of all, can Mailman handle this? If so, do I need a stronger box,
and perhaps another MTA, maybe postfix?

I believe that gnome.org's mailing lists are using mailman, as well as
redhat's, but I am not sure whether these lists are bigger or smaller,
and how powerful their machines are.  

If mailman will not handle these demands, I will simply install Lyris
and work from there, but I am really interested in using an open-source
program for this.

Any input would be appreciated.

--Neil Cooler
Unix Admin, Nando Media
http://www.nandotimes.com/
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