> Does anyone knows a good way to prevent dictionary attacks? - Lighter attacks that have trackable origin IPs can be stemmed by using IMail's built-in access controls. Limiting the number of RCPTs per message will also help--if the spammer is not using software that accounts for and circumvents such measures.
- If you are under heavy attack, you will probably want to put in a bastion host, preferably Len Conrad's personal cookbook for PostFix called IMGate, to do the warding off. - Terry Fritts has done some proprietary work along the same lines as Len that may inpire you if you wish to build a solution using IMail alone. - BlackICE has also been recommended for a built-in dictionary attack detection and lockout. -Sandy To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
