* Steve <steve.h...@digitalcertainty.co.uk>: > The feature set that this 'bsmtp' proxy seems to offer are; > 1. Recipient Verification checks via one of three mechanisms in sequence > a. LDAP/AD query (able to query one or more LDAP servers) > b. SMTP Recipient Verification (sends a test message to server > from 'postmaster' > c. Flat text file of allowed recipients
Postfix can do that > 2. Rate/Anti DNS control > a. If IP X is seen more than 50 times in 30 minutes block it. Postfix can do that using anvil > 3. SPF > > Mixed emotions about that one myself. SPF sucks. DKIM is better. But both are not really widespread -- Ralf Hildebrandt Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.computerbeschimpfung.de "Memory is like gasoline. You use it up when you are running. Of course you get it all back when you reboot..." -- Actual explanation obtained from the Micro$oft help desk.
