Some thing is not normal on your configuration. During the SMTP receive, at the point that the sending SMTP server says RCPT TO: Imail compares that will the local users and if not found, responds with unknown recipient and rejects the message. Therefore, the message is never received.
There must be a gateway or nobody alias involved somewhere. Please explain your setup. John Tolmachoff Engineer/Consultant/Owner eServices For You > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:IMail_Forum- > [EMAIL PROTECTED] On Behalf Of Herschel Jones (Industries - Augusta) > Sent: Wednesday, January 05, 2005 10:42 AM > To: [email protected] > Subject: [IMail Forum] Dictionary attack bounce messages > > We are getting an influx of messages from > <random_string_of_characters>@yahoo.com lately, to invalid userid's on > our system. The problem is that Imail is generating a bounce because of > unknown user, but the bounce is going to a user account that doesn't > exist on the remote server either, so it is causing unnecessary network > traffic, and unnecessary log file size in Imail. Without stopping all > postmaster messages going out, is there any way to work against this > effectively? > > Herschel Jones > Email Administrator - MIS > Boral Bricks, Inc. > > 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/ 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/
