I run a VPS and one of my users has had their email blocked by SpamCop, with the following message:
Connected to 18.104.22.168 but sender was rejected.
Remote host said: 553 5.3.0 spam blocked see: http://spamcop.net/bl.shtml?xxx.xxx.xxx.xxx
So, I followed the links to Spamcop, and selected the link entitled "Information about the reasons for listing (blocking) your mail server (xxx.xxx.xxx.xxx)".
Only to be told when I queried the Spamcop database that "xxx.xxx.xxx.xxx not listed in bl.spamcop.net".
So how are we being blocked when our server IP address is not held in the Spamcop directory?
Thanks for any help,