I'm really loving Firebird and Thunderbird - moreso Thinderbird though.
For years I've worked in MS shops so I've naturally turned to MS for my needs - IE, Outlook, etc.
Well, the past couple of years I've been unemployed/self-employed (Depends on which hour/day/week it is) and so I haven't been as involved with MS technologies as I once was.
Recently my server admin switched us over to IMAP - which wasn't a problem for me. I used Outlook express and received my email as usual, life was well. Until I became a list mod for OOo.
Oh sure, things where fine - I adapted to the influx of mail, though I was disappointed in the lack of a good free spam plugin for OE as well as the inability to apply mail rules to IMAP accounts.
Then MyDoom came.
All of a sudden the mail surged forth unabated! The biggest offender? Not the virus, not in the least. It was all those damned inconsiderate email administrators that leave on the "Tell people they sent us a virus" switch. We're talking about receiving something in the range of 500 emails an hour - 1/2 being valid, 100 or so MyDoom and the rest AV auto-replies. OE was dying! So I bit the bullet and installed full blown outlook.
Damn have the times changed. I absolutely hated it. It was slow, bloated, inefficient, and sucked the life out of my machine. Not to mention it couldn't quite handle that flood of email I was receiving, the STILL inefficient spam plugins and the horrible mail rules.
So I said, "iirc, Thunderbird has everything I'm looking for". So I went and set it up - and I'm loving it. It's fast, efficient, clean to the point of almost being sexy.
Oi, I only wish I would of found it sooner!