Greetings, running GWIA of GW8SP1HP1 release on NW65SP8. On some of our
outgoing emails, there is a file being added to the message, that's causing
some outside email systems to think there's a virus attached to our emails.
If I grab some of these emails from the users' GW mailbox and forward to my
GMAIL account, I see a HEADER file attached to the email, this HEADER file
does not appear in other messages (for instance if I just send a test
message from my GW to my GMAIL acct).

AFAICT this only started recently (within last few months), so it's possible
it only started with GW8SP1HP1, but I can't say for certain.

Any ideas?