Error: IMAP(<user>): FETCH for mailbox Trash UID 42022 got too little data: 90900 vs 1529791

[compdoc]

>I keep getting the following errors scrolling in my dovecot logs.  I am
>wondering how I can nail down what is creating that problem.
>
>dovecot: 2011-11-04 16:58:01 Error: IMAP(<usr>): FETCH for mailbox Trash
>UID 42022 got too little data: 90900 vs 1529791


I once discovered a problem with another email client and IMAP, but it might
not help you at all.

Do you have the client set to retrieve mail at a set time, like every 5
minutes?