I sent a mail from my machine relayed through a
public mail server to my gmail account using smtp on telnet.
now when i select show original on for that mail in my gmail account.
I see several headers just before the body of my mail.
X-TM-AS-Product-Ver: X-TM-AS-Result: X-imss-scan-details: X-TM-AS-User-Approved-Sender: X-TM-AS-User-Blocked-Sender:
Are these headers being added by gmail or my mail server. How do I find out.
Is this because of the process described in Section 3.8.1 of this rfc.
Update: Can you give an example of the scenario given in this section of the rfc. I am assuming that when my mail server sends a mail to a gmail account, the gmail server is a gateway as defined in the rfc as it is going into a different environment. Am i wrong?