I did find this in the logs:
11:23 15:36 SMTPD(63ed01a500000125) [65.74.132.77] Max Invalid RCPTs Exceeded
This has never been an issue before should I just up the limit in
the SMTP services settings from 20 to something higher until it
plays nice? What the recommended settings for dictionary
attack? Is there a way to disable it?
IMGate's default setting is to disco if postfix give 2 5xx rejects in
one SMTP session, has been for years.
I consider any session with 20 5xx rejects to be unquestionably invalid.
Last time I looked, 98%+ of mail is single recipient per SMTP session.
Len
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/
