Download (with ldap) a list of current valid email addresses, 'portmap' them. Add a pointer to the db in postfix's main.cf to handle MOST of the email addresses, only do ldap queries on email addresses that don't exist in the postmap'ed relay db.
For dictionary attacks, drop the connection after (x) bad attempts to keep the ldap queries to a minimum. ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
