I'm finding that IMAP is the way to go lately, for the reasons you mention
below. I view my mail on several computers, and using IMAP generally works
well to keep on those devices in sync.
I tried IMAP with my .Mac account when I first got my mac.com address
(anybody remember iTools???). At the time I was using Office 2001 or X,
IIRC.
The problem I had was with emails disappearing. I would be scrolling through
my inbox, and I'd see a subject line or from address I wanted to read, and
as I scrolled to it it sometimes just disappeared and the next email below
opened up! The missing message was never to be found again - not via
webmail, not in the trash - not nowhere, not no how, as the Cowardly Lion
might put it.
After seeing this behavior repeated multiple points, past the point that I
blamed it on my imagination, I gave up on IMAP and went back to POP. I just
set up Entourage on my MacBook (and its predecessors) as my "master" client,
deleting messages from the server when the MacBook downloads. The Apple Mail
client on the MacBook and various clients on other computers are set up to
leave mail on server, so when I get to my MacBook I can still download that
"master" copy and access it whether online or not.
Now that I have an iPhone, I'm thinking of trying IMAP again, as I find
myself leaving the MacBook behind more than I used to. I'm going to trust
that whatever caused the disappearances before has been corrected by
Entourage updates, OS X updates, fresh new computers/OS X/Entourage
installs, or some combination of the above. That, plus I don't recall
anybody else reporting the same problem.
Mark
Office 2008 12.1.1
OS X 10.5.4
MacBook 2GB Intel Core Duo (Early 2006)