This message was created automatically by the mail system (ecelerity).
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
>>> [email protected]
(reading confirmation): 552-5.7.0 Our system
>>> detected an illegal attachment on your message. Please
552-5.7.0 visit http://support.google.com/mail/bin/a...py?answer=6590
552 5.7.0 review our attachment guidelines. ot3si21496414pbc.11
It is in a .rar, but apparently any.exe even zipped is an illegal attachment.