-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On February 23, 2004 9:41 am, J.Rafael S�nchez wrote: > Hi All, > > I got an avalanche of "Unresolved Sender Domain" messages from my > mailwatch on my mailserver this weekend. I usually get half a dozen ever > couple of day, which I ignore, but in the last couple of days I got > close to 350, if not more. I didn't do any traces or anything on any of > them, but obviously they don't exist. Anything about them, or > everything, could be forged. > > I was just wondering if anybody has seen or experience anything like > this lately, or if this is something I need to worry about. Am I being > the target of some intensive spam attack? > > Rafael.
You're seeing this in your mail logs? What server are you using (sendmail, postfix, qmail)? Whatever server it is, do you have any of its anti-spam settings enabled? It could just be your mail server doing its job, preventing people from sending spam to you from domains that don't exist. How about anti-relaying settings? If you don't have the anti-relaying settings of your mail server enabled, it may be a clue that someone is, in fact, relaying spam via your server. Check your log files and see if any mail is leaving your server in response to these "unresolved" messages. Ian -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQFAOkGySiY+RXI7JS4RAiMCAKCXgPpAd9hgollWSRwRI7/mi7l4hQCgrXdw cJVDX2V4oCDmqGHl4x9Amiw= =6WKX -----END PGP SIGNATURE----- _______________________________________________ clug-talk mailing list [EMAIL PROTECTED] http://clug.ca/mailman/listinfo/clug-talk_clug.ca
