On Fri, 2002-12-20 at 21:11, Mark Hynes wrote:
> However, they might not be using AOL mail or sending via an AOL gateway -
> for example, user@??? might also connect via another ISP and send out
> mail via the separate ISP addressed from user@???, perfectly
> legitimately. Any restrictions based on the User-Agent / X-Mailer or similar
> would reject any such mail.
Me, I would say -
# Just block all connections direct from AOL dialups
# Look for HELO aol.com where the connecting IP is not in AOL netspace
# Block those
You will find just about zero false positives, and a ton of open proxies
/ h4x0r3d boxes / direct to MX spam sources this way.
srs
