OT - Help with resulting error message

[Steve Freegard]

Steve Campbell wrote:
> 
> Part of the original post question:
> 
> Does multi.surbl.org block on content, for instance, the reference to
> twitter.com in his signature. I thought they only listed offending
> sender's IP, not someone who referenced an offending senders domain name
> in an email.

SURBL and URIBL are *URI* blacklists; they do not list the senders IP
like traditional lists but list domains seen in spam instead.  Hence why
the reference to twitter.com in the signature triggered this.

Regards,
Steve.