[AccessD] OT: email

John,

About SAProxy...
How are you going to handle addresses that were put on the a black list by
accident and at a later time taken off.  

As in our situation, our domain was put on a blacklist about 1.5  years ago,
because someone was bouncing email off our NIC and grabbing our domain and
attaching it to the end of the senders email address.  We were put on the
black list, and had to make quite a few phone calls, and emails to various
places to get our domain off the blacklists.  We also discovered a
vulnerable point of our infrastructure and have since closed that hole so
people can no longer bounce email off our NIC.  

Does your program remove entries from your blacklist if they are legit email
addresses and not black listed anymore.

Rich

-----Original Message-----
From: jcolby at colbyconsulting.com [mailto:jcolby at colbyconsulting.com]
Sent: Wednesday, July 16, 2003 5:10 PM
To: AccessD
Subject: [AccessD] OT: email


Does anyone know if email can come from a url that will not display in i.e?
IOW, if can I get email from Somebody at mx5.1premio.com if when I put
www.mx5.1premio.com I cannot display a page?

On the face of it I would think that is possible.  A person could set up a
web address just to send spam and have no valid web page served up for the
url.

BTW, an update on SAProxy, the spam filtering program I have been
discussing, I have found blacklists out on the web that increase the
accuracy of my filtering.  I have written a little program to import all the
addresses of a blacklist into a table with a unique index on it, then write
that table back out to a config file for SpamAssassin.  This allows me to
accumulate blacklist addresses from published lists while insuring that no
blacklist address ever gets looked at more than once.  It seems to be
working.  I'll let you know what the new figures show for filtering, but I
am already getting spam removal based on the fact it is in my blacklist.

John W. Colby
www.colbyconsulting.com


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