I am currently running a mailscanner box on centos using sendmail that relays to my exchange server. I am trying to block email to non-existent users at the smtp level on the MX. I understand I have to somehow update sendmail with existent users in the active directory possibly using ldap. I can't seem to find any good documentation on how to do this. Many entries in the archive point to
<a href="http://www.mailscanner.info/serve/cache/270.html">http://www.mailscanner.info/serve/cache/270.html</a> but this doesn't exist anymore. I also found a sketchy bash script at <a href="http://the-jer.spaces.live.com/blog/cns!E4FBBD09FA146AF!128.entry">
http://the-jer.spaces.live.com/blog/cns!E4FBBD09FA146AF!128.entry</a> but I don't like this approach either. I want to do all the work on the gateway. Can somebody point me to some good documentation or a healthy script that I could use to accomplish this?
<br clear="all"><br>-- <br>Joey Marino