Raymond Dijkxhoorn wrote to Jeff Chan and SURBL Discussion list:
Hi!
blah.com This was in a ProFTPd mailing list message "how do I set up a virtual host for "blah.com".
Uhm, if people need to type 'some' domain, its often blah.com or foo.com, thats common use, and the spammer using blah.com does take nice advantage of this.
Yeah, and, unfortunately, there isn't much we can do about that to list them, since they'll definitely be used in ham.
- Ryan