RE: Spamassassin on an E-Mail Gateway

[ha...@t-online.de]

>> 
>> You've gotten some good responses, but like Chris I will share my
>> experiences:
>> 
>> We use Exim4 with sa-exim.  Sa-exim also adds some greylisting
>> abilities. =20
>> 
>> More importantly, Exim4 has LDAP query abilities so we can query our
>> Active Directory before accepting a recipient.  This is essential in our
>> situation since we are a university and have a very high turnover in
>> email addresses.  My logs show that over 60% of our incoming email is to
>> invalid addresses.  If it wasn't for LDAP queries, we would have scanned
>> all that email for spam and viruses and then let the Exchange servers
>> drop the bad addresses.
>> 
>> Out of curiosity, does anyone know what other MTAs might support LDAP
>> queries?
>> 
there is some qmail ldap around. I have no experience of my own with that, since
I am running qmail with mysql

Wolfgang Hamann