Updated to 2011's 14.3.4 yesterday (Friday May 25th). Since then my Exchange and iMap account refuse to delete email. You delete them, they come back 5 seconds later.

The only anomaly here is that on Tue the 21st, I accidentally changed my date to +1 day so the 21st = 22nd. I ran a few days like this, came home and noticed this on Friday (Yesterday). Changed it back. No biggie - No problems. Got mail for the next few hours on all account, it would delete, no problems. 

Then I did a manual update to 14.3.4 and ONLY after that, the issues started up. At first my junk email folder was growing like crazy. I had 100 copies of the same email with the same time stamp but via the web interface (it was an imap account), there was only one. OUTLOOK was just downloading it over and over. Deleting it on the Mac did nothing. It kept coming back. I had to delete it on the server.

Then all emails across imaps, hotmail and exchange will not delete. You delete, empty trash, they come back. On the respective server, they're there but apparently only one copy and untouched by exchange.

Here's the sad part. I did an empty cache of my EXCHANGE server only after confirming that my web interface showed ALL my emails there PLUS all my emails were on my local Mac 2011 machine. Guess what. OUTLOOK DELETED MY ENTIRE EXCHANGE FOLDER but LEFT THE PROBLEM EMAILS........

So I've lost TWO YEARS of work and while I'm hoping to get that restored, this is still something that only started happening after 14.3.4 was installed.

Thoughts? Could the date change have caused this? I don't see how as anyone relying on dates to affect deleting email or causing the destruction of years of inbox emails would be ludicrous.