Why is this happening?

[animal mother]

Hi!

You mean this shows up in the e-mail itself? If so, I had this once in a game with (I believe) Rope. It is caused by a setting in the mail client's options, that the attachments are shown in the e-mail. He had to turn it off and afterwards everything worked like a charm again. But do not ask me where exactly is as I did not need to do anything. Hope this helps.

Cheers
Michael