Please attach a complete message as an EML file, zipped, to this ticket.

Added a problematic email that was forwaded to me.

Topic is geting rather urgent. Please some advice!

We'll look at it today or tomorrow. If there's any bug, it WILL be fixed on v2.2.10.

Have you found anything?

Haven't looked at the issue yet.

I think my issuse is similar to: http://www.sogo.nu/bugs/view.php?id=2817

I set up an IMAP account and attatchments are fine.

Also send some test .zip and .rar attatchments.

Tried to open them with 7zip, corrupted.
Tried to open them with winrar. Winrar opens .zip but with .rar corrupt header is found.

It seems to be a bug in SOPE - when we re-encode mails for Outlook 2013. We manipulate text parts but don't touch attachment.

In the original test mail you attached to this ticket, there are 3 or 4 bytes missing after the re-encoding. Obviously, SOPE is again the culprit here.

Okay.
what is my solution here?

Wait until we fix it.

In fact, it looks like ALL SOPE-encoded messages have attachments with 3 bytes missing in Outlook 2013.

If the file size is a multiple of 3, we lose 3 bytes.

If the size is 1 over a multiple of 3 bytes, we lose 1 byte.

Adding two pads (==) solve the issue. Stupid Outlook bug.

Fixed in SOPE: https://github.com/inverse-inc/sope/commit/67c58bfd91e859c9bf643cf20cc44ed2fe6e389f

Please try the upcoming nightly builds, it's very important for our release.

Nightly builds are now available.