Cam wrote:
I've been assigned to set up a fairly large mail server (possibly up
to 100,000 users)... the requirements would be pop/webmail access
(maybe imap too). After searching around for something suitable (i'm
running debian linux), i came across the courier mail site. It's an
impressive list of features, and i like the design (being able to use
certain parts of it instead of the whole set, etc.) Anyway, i want to
give this a whirl, but i was unable to find a document that described
the status. From what i could tell it seems like an old and stable
project, but i noticed that the version number is still in the
.47-area. Recognizing that all versioning schemes are different, i
thought maybe i should just email this list to see what exactly the
status of courier mail is right now. Would it be suitable for the
size of project i'm looking at? Is it stable enough to use in a
production environment? Any kind of list of large projects that are
currently operating on the courier mail server? Really sorry to
trouble the list w/ such a lame and simple question, i just couldn't
find this sort of documentation on the website... if it exists just
sending the link would be more than enough.
As others have confirmed and you said yourself. The release number
indicates beta, but that means much less for Open Source software than
commercial. Sam has kept the version number below 1.00 because he feels
it's not feature complete, not because of stability. I've been running
Courier-MTA for a few years now for ~1500 students and it's proven
extremely stable (much more so than the windows mail server that
faculty/staff use). With 100,000 users, you'll definitely want to look
at seperate SMTP and IMAP/POP3 servers plus NFS servers for storage.
Maildir of course, plays very nicely with NFS and such. As for large
users, www.webmail.us, a large email outsourcing company uses
Courier-IMAP for all their accounts. See these sites for details:
http://www.webmail.us/open-source
http://www.infoworld.com/article/04/10/29/HNwebmail_1.html?OUTSOURCING%20SERVICES
I'm sure there are other list members who are in the 10k to 100k user
range. With the new IMAP/POP3 proxy code, Sam claims the only
theoritical limit to vertical scaling would be network bandwidth. See
imap/README.proxy in the courier tarball for details.
Jay
--
Jay Lee
Network / Systems Administrator
Information Technology Dept.
Philadelphia Biblical University
--
-------------------------------------------------------
This SF.Net email is sponsored by the 'Do More With Dual!' webinar happening
July 14 at 8am PDT/11am EDT. We invite you to explore the latest in dual
core and dual graphics technology at this free one hour event hosted by HP,
AMD, and NVIDIA. To register visit http://www.hp.com/go/dualwebinar
_______________________________________________
courier-users mailing list
[email protected]
Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
