problem with upload - message to large

Everytime, after launching my eM Client, I’ve got the following error message:

[IMAP] Unable to upload message ‘‘navrh na vklad’’ to folder ‘’[Gmail/Kos’’. ([ALERT] Message too large.

How could I fix this error? This email named “navrh na vklad” is not anymore on my gmail account .(deleted few days before)

I have solved the problem already. Thanks.

Hey, can you post how you solved the issue? I’m having the same problem.