Missing Attachments (.P7m) with attachment.txt file instead

eM Client really should not try to open p7m files as they can be/contain anything… many applications use the same file extensions… for example a .bin file can be anything from a CD-image to an executable file.

Is there a solution for the .P7M problem?

It seems the EMClient sends the email with p7m attachments. But the attachment is not listed in the “sent mail”. And worst, my customers cannot receive any p7m attachment.
I have a couple of hundreds customers with thunderbird and they want a more flexible email client. My first option was emClient (already bought some licenses) but at this very moment I’m stuck with the p7m problem…