Cyrus and unexpected email volume

Jules Agee julesa at
Tue May 4 15:42:29 EDT 2004

Nice! What OS & filesystem are you using on that box?

Scott Russell wrote:
> Just wanting to relay a situation that happened here recently. A Domino
> SMTP server on our internal network went nuts and tossed our Cyrus IMAP
> server 483101 copies of a message in a short time span.
> Our imap server is a modest dual 733Mhz PIII with 1GB of RAM and
> hardware RAID5 for the disks. Postfix is the SMTP and Cyrus 2.1.16 is
> what we're running. 
> What impressed me most on the Cyrus end was how well it handled the
> large INBOXs some users found waiting for them. I've seen other IMAP
> installs choke on this kind of message volume in a single folder but
> Cyrus didn't blink at it.
> For mail clients we let the users pick what they're happiest with
> (daring, I know). Most use either Evolution or Mozilla mail. One of our
> users who had 35,000 emails in his INBOX was using fetchmail to pull
> down his imap mail locally. For that one user they logged in to our
> Horde + IMP 3.1 web mail interface and was able to quickly filter,
> delete, and purge the 35,000 emails in less than 3 min.
> Thanks for all the hard work that has gone into Cyrus IMAPd to make it a
> robust and open IMAP solution.

Jules Agee
System Administrator
Pacific Coast Feather Co.
julesa at      x284

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