Comment No need to prove you are not a spammer (Score 1) 127
(A) At least 95% of spam is sent using fraudulent "From" addresses, most of them being addresses (like yours) taken often from the same list being spammed to. None of the major blocklists ever block based on the "From" domains in spams, nor indeed do we pay any attention to "From" addresses on spams. What gets blacklisted is the sending IP address or the IP of a web server hosting the spammer's website advertized in the spam. There has never, ever, been a case of a major blocklist listing someone based on the "From" address of spams, therefore this is not something to worry about.
(B) Thousands of people worldwide are bombed every day with 'undeliverable' bounces due to spammers using their addresses as the "From". The way to handle it is to never accept mail for non-existent usernames (anyone accepting mail for anyuser@ these days is nuts) and use a filter that can block on text strings such as "From: *daemon*", "Subject: *returned*|*undeliverable*", etc. Then, simply ignore it, the spammer will move on to using a different address tomorrow.
Steve Linford
The Spamhaus Project
http://www.spamhaus.org/
(B) Thousands of people worldwide are bombed every day with 'undeliverable' bounces due to spammers using their addresses as the "From". The way to handle it is to never accept mail for non-existent usernames (anyone accepting mail for anyuser@ these days is nuts) and use a filter that can block on text strings such as "From: *daemon*", "Subject: *returned*|*undeliverable*", etc. Then, simply ignore it, the spammer will move on to using a different address tomorrow.
Steve Linford
The Spamhaus Project
http://www.spamhaus.org/
