I’ve been back and forth with Mail Clients on my Macbook Pro over the past few years and was wondering what everybody thought the best IMAP email client was?

I used Mail.app for a while, but started having connection issues. Messages failed to be sent even though Mail.app reported they were sent. Thunderbird gets flakey on and off. Entourage seems like overkill because of the calendar and address features I don’t need. I’m currently using Thunderbird but its not programmed native to OS X so it runs slower than it should. It’s also been hanging occasionally. It does, however, send messages which of course is a vital feature.

I have about 3 IMAP addresses on one mail server (different domains) and 2 Gmail accounts. All are used for various purposes and I’d rather not combine them.

So, what client are you using for IMAP connections on OS X?