Get Exchange Mail Messages - Signed mail - Attachment replaced by smime.p7m


i have an issue with the “Get Exchange Mail Message” activity. When reading a message that is digitally signed (but not encrypted) the attachments are replaced by a attachment with the name “smime.p7m”.

Is anyone familiar with this issue and has a solution?

This issue does not occurs when using the “Get Outlook Mail Messages” activity. Because my process is already in production i do not prefer this solution.