[shin0r]

They might be using SpamCop to identify spammers. There was another thread recently on this forum regarding this - SpamCop had identified NTL as a spammer due to the volume of mails sent from it's mtas - utterly insane, as the NTL mtas will *always* send huge amounts of mail every day.

You'd probably be best off speaking with the admins at gawab, and see if they can shed more light.

cheers