Christopher Wong wrote:

>Is there a good IMAP client review out there? What makes a "good" IMAP 
>client, apart from the subjective stuff?
>
The IMAP protocol has three modes, offline (just-like-POP3 mode) 
(supported by fetchmail), online (supported by Pine), and disconnected. 
Doing offline and online are relatively easy, and offline is cool for 
the roamer or someone on a slow connection that wants to edit in chunks 
rather than deal with the latency, so IMO a client that does 
disconnected mode is a "good" client.

Disconnected is the mode that very few clients really support-- many 
claim they do, but lie. :) Disconnected mode means a cache of your mail 
is kept on your local machine, and when you reconnect to the imap 
server, imap uses it's protocol abilities to "resync" with the master 
copy... even if changes have occurred to the master-- kinda like CVS. 
Most clients that claim to do disconnected mode really just cache on the 
client but make no attempt to resync flags changes, message moves, etc. 
(Netscape & Mozilla cache for off-line viewing, but client side 
changes/edits while disconnected will be clobbered upon reconnecting)

This is great for travellers; load your messages up before you board a 
plane, manage your mail (deleting, moving, marking messages), then 
reconnect upon landing and arriving at your hotel and having the e-mail 
client resync the changes.

The details on how to use IMAP at the protocol level to do disconnected 
mode is at:

<URL:http://asg.web.cmu.edu/cyrus/rfc/draft-ietf-imap-disc-01.html>

The IMAP4v1 does a lot-- I've yet to see a client that exercises all 
that it's capable of.

IMAPs ability to download a message without it's attachments and the 
ability to delete an attachment from a message without the message 
itself is also convenient.




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