Jeff Chan wrote:
What you saw may have been an artifact of broken DNS queries. There are also filters in place to prevent things that cannot be domains from getting on the lists.
Some spammers apparently try their luck with ">" in pseudo-URLs like http://what%3Eever.spammer.example (seen in an article on the SpamCop list). It's a bit beyond me how any decent MUA can accept this as link. In that example what>ever.spammer.example has an IP, but it's of course no valid host name.
Apparently a hard case of "fix your MUA", I've no better idea. Normally I hate this line of arguments when it's used against my good old "Mozilla 3". Of course my monster doesn't accept this crap as host name, it stops at http://what as it should.
Bye, Frank