I have been using seamonkey 2.14.1-i586-1vl70 for some time with no problems, until today. Twice, when saving attachments to received emails (from two different sources) the attachments saved fine, but the email was deleted. Period. No where to be found.
I got on gslapt and noticed that I was using an old seamonkey-solibs (2.7 I believe). So I updated solibs to the same version as my seamonkey. I will see if this helps and report if it does not.