If this solution is not available to you, contact Channel 1 support. If you would like to be removed from e-mail spam filtering, contact Channel 1 support. What You See is Not What You Got When reporting spam it is imperative to include the FULL headers of the spam. Many email programs hide this information from you by default. See the links below for information on de-ciphering email headers.
Spammers try to cover their tracks.
Channel 1 can block the innocent relayer, but the spammer just moves on and finds a new victim.