Hi there
I have a high number of 550 relay errors in my maillog. I am actually glad they are there, because the relays are from unknown users! Which (i think) means my clients sme server is doing a great job in terms of not sending mail from unknown users. My question is, would the relay (or generation) originate from within my sme server?
The reason i ask is, there is a pattern in the sense that the unknown users generated seem to follow.
eg. auser_2008@clientdomain.com or anotheruser_1998@clientdomain.com
Im not completely up the play in terms of spam generation.....can anyone help me here?
maillog error:
clientserver fetchmail[5437]: SMTP error: 550 relaying denied unknownuser@clientdomain.com
Robin
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