>> >> 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
