> Do you know how I can do that? I am running postfix. I could > check the logs for that date and see what was put there. > > If you know of a setting to set to include envelope header > values in the header somewhere, I'd turn that on. >
Victor this may help. Many systems on the net will "helo" with the IP address of your MX record. In postfix you can try the following and see if it helps: -----Original Message----- From: Eric Toll Sent: Friday, March 12, 2004 8:49 AM To: [EMAIL PROTECTED] Subject: RE: How to ban spam pretending to be from my domain? I may have some redundancy in the below list, note how I also list the IP address of my MX record. You can also be "creative" with the responses. 8-) Create this file: /etc/postfix/helo_hostnames.map $domain 554 Liar Liar pants on Fire: (Nose is long as a telephone wire) localhost 554 Liar Liar pants on Fire: (Nose is long as a telephone wire) localdomain 554 Liar Liar pants on Fire: (Nose is long as a telephone wire) localhost.localdomain 554 Liar Liar pants on Fire: (Nose is long as a telephone wire) 123.123.123.123 554 Liar Liar pants on Fire - Tho Shall not LIE, you have just broken one of the 10 Commandments, was it really worth eternal damnation to send an email? mx.mydomain.edu 554 Liar Liar pants on Fire: (Nose is long as a telephone wire) Postmap this file: /etc/postfix/helo_hostnames.map and in main.cf: smtpd_recipient_restrictions = ... check_helo_access hash:/etc/postfix/helo_hostnames.map, ...
