Hangs on large html email

On 4.0.15145.0 when I get a very large html email (svn commit diff’s with html highlighting), I’m unable to open it without it hanging the client. After force killing, I then have to wait over 20 minutes for a db repair.

what is the size of the email? Download the tool available at emclient.com/tools/emstackdump.exe and run it after the eM Client hangs again. It will generate a log in your documents. Send this log to us. Thank you.