This Forum is here to help those who have had their e-mail blocked based on use of the SCBL (SpamCop Blocking List Service, SpamCop BlockList, SpamCopDNSBL, or just the blocklist) by the receiving ISP, as well as those ISPs that use the SCBL.

For those of you who have had your email blocked, please understand that you need to help us to help you. To that end, if you are not sure of what IP Address is being blocked, please post the entire email (including the Headers, especially the Received Header Lines) containing the entire error/blocking message (including the Headers, especially the Received Header Lines). You may munge the left side of every email address (before the @-sign) and the body, but please don't munge IP Addresses, server names, and the right side of any email address (after the @-sign). We suggest that you read the following from the SpamCop FAQ:If there is anything in the FAQ that you do not understand, please return here to post questions and we shall try to help you.

For those ISPs that use the SCBL, please note the important items derived from How do I configure my mailserver to reject mail based on the blocklist? and its subfaqs:
  • If you can, please don't block outright, instead please filter and allow the use of whitelists to give your users more choice.
  • If you must block, please use an informative string in your block message like "Email from your IP Address [IP Address] blocked, see http://spamcop.net/bl.shtml?[IP Address] for details".
Thank you for your patience as we work together to limit spam email and extend the usefulness and usability of wanted email.