[CentOS] CentOS 6 Webmail

Fri Jul 29 11:15:07 UTC 2011
John Hodrien <J.H.Hodrien at leeds.ac.uk>

On Fri, 29 Jul 2011, Craig White wrote:

> Not going to comment on Exchange/OWA

It's really hard for me not to.  Exchange is a god awful pile of crap that
doesn't properly implement IMAP (true of 2003-2007, not tried 2010), and MS
don't really care that much about it, as you should be using MAPI.  It's buggy
enough that a single IMAP client can bring it into a state where it's no
longer functional until you restart it all.  Message flags on 2007 are stored
independently for MAPI and IMAP, so if you read a message with IMAP, it's
still listed as unread in the web interface.  Reading a message in the web
interface will reorder your mailbox as far as IMAP is concerned.  Do an IMAP
search for an email address and it won't find it, as it only indexes on the
real name component.  It stuffs up signed messages due to its broken IMAP
implementation.  Things like thunderbird have code designed especially for
Exchange to work around these bugs, so it generally looks a lot more
functional than it should.

OWA on 2007 is designed to be rubbish in non-IE browsers.  What to set
filtering rules up, or check your quota, or arrange a meeting for 10:15am.
You won't be doing any of that with firefox.

Anyone holding up Exchange as an example of an IMAP/Webmail solution had
better be holding it up as an example of how not to do it.

jh