I have been getting a lot of bounce-backs lately. I thought my google apps account has been compromised, but there is no activity on my apps account, and there is certainly no malicious user that I ...
2013-01-18 10:33:04 cwd=/home/USER/public_html/clients 3 args: /usr/sbin/sendmail -t -i 2013-01-18 10:33:04 1TwDwG-00023y-Ks <= USER@host.mydomain.com U=USER P=local S=3993 ...
w.r.t. the difference between RFC2821 MAIL From and RFC2822 FROM I'm considering having my MTA add a header specifying what was sent in the MAIL FROM portion of the envelope. The RFC2821 header is ...
Can someone tell me when and why a client, MTA relay, Unix .Forward, anonymous relay, or listserver will create, or alter these headers: Resent-Sender: Resent-From: Sender: From: If you can please ...