I've search TMO for similar trouble recently bumped in to my device, but couldn't find one.

For almost 8 months using the "SLOOOOW" Modest as main email apps, despite it's "ordinary" behaviour, it's always deliver & sync email from my office mail server (using Zimbra CS - don't know exact version) to my N900 completely.

But after a couple days it didn't sync anymore.
Normally connected using IMAP with SSL.

Try to debug using instructions found at https://wiki.maemo.org/Bugs:Stock_an...he_mail_server

and my log analysis conclusion is:
when trying Resync Failed because Zero-!ength content.

Has anybody already resolved this trouble?

Log file attached for those who interested.