Webmail applications that are kind to the IMAP server?

Dave McMurtrie dgm+ at pitt.edu
Tue Sep 3 08:17:17 EDT 2002


> Are there any e-mail web applications that are better behaved, in that
> they utilize a single IMAP session for the duration of the user's web
> session?  Are they otherwise as attractive as IMP?
>
> Are there ways to improve the performance of Cyrus when it's being
> used by ill-behaved web applications?  Can Cyrus defend itself against
> this sort of IMAP activity?

We wrote a caching imap proxy server to deal with this.  When webmail
clients connect, we proxy everything except LOGOUTs to the imap server and
just keep connections open for a while such that when the client
reconnects, we can reuse an existing connection.  The client LOGIN to
server LOGIN ratio has been as high as 20:1.

-Dave
--
Dave McMurtrie, Systems Programmer
University of Pittsburgh
Computing Services and Systems Development,
Development Services -- UNIX and VMS Services
717P Cathedral of Learning
(412)-624-6413






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