In server.tab set: "SMTP-MaxErrors" "2" This will stop dictionary attacks but it is not remembered after the connection is dropped however it is sill quite effective. I wrote a program to collect these attacks from the log file and add them to spammers.tab but stopped using it because with a setting of 2 it was catching some legitimate mail.
At 05:04 PM 21/11/2005, you wrote: Is there a way to automatically block a sender IP address after he/she trie= d=20 to deliver more than (for example) 10 consecutive messagens to email=20 addresses that doesn't exist on server in a given elapsed time? I think it would be a good antispam tool. It could also releases blocked IPs after a punishment time. =2D-=20 Helio Cavichiolo Jr Altecnet Inform=E1tica Ltda (19) 8137-6822 - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED] Tom Banting Internet: [EMAIL PROTECTED] Telcom Research WEB: http://www.TelcomResearch.com [1]Voice 1 (905) 336-2450 Fax 1 (905) 336-1487 --- Links --- 1 http://www.TelcomResearch.com - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
