Any IP/domain name to trace Frogzlovzy ?

[MathieuDemers]

Hi,

Few weeks ago, I sent a message here to notice that some spam bots are now registering on our SMF forums. (Link: http://www.simplemachines.org/community/index.php?topic=88030.msg588988)

Since that moment, I block bad domain names and IP ranges on my forum and each member must be verified with the e-mail sent to their address.

Today, I saw a new spam bot named Frogzlovzy (E-mail address: [email protected]) registered on my forum and, for the first time, I see no IP address or domain name linked to him.
How can this be possible ? There is another method to block him or to see its IP address ?
(I have no access to our server access logs, only to the admin section logs.)

I want to remove the e-mail authentification (for the simple reason that people doesn't reply to our subjects because they must be registered members) but this spam bot forces me to wait before changing the option... (I agree with him : http://www.simplemachines.org/community/index.php?topic=101037.0)

[Coqui]

Jesus! someone know how to deal with something like this?

[vbgamer45]

I banned *@gaweb.com from registering on the forum.