I recently tried sending an e-mail to someone who uses SpamCop, and this is the error response I received: "[iP address] does not like recipient. Remote host said: 554 Service unavailable; Client host blocked using bl.spamcop.net" Okay, I am not very computer literate so this might seem like a stupid question....but is there an option that a user can select when that person "does not like" the person who is sending them an e-mail? Is that why the error message said the IP address "does not like recipient," i.e. me? Thank you.