Last night we started add ip address blocks to the access control list that have been sending us most of your spam(china ip address). This morning I am getting call after call about email our users are receiving about delivery failures. I wanted to see if this is just a side effect and how everyone else is dealing with this.
So far what I think is happening. Just using aol as example. A spammer from an IP address that is denied access sends an email to one of are users with a return address of [EMAIL PROTECTED] Our email says no and sends notice back to [EMAIL PROTECTED] [EMAIL PROTECTED] is not a valid email address at AOL, This sends back a failure notice to our user. At this point the user is confused because they don't know who this person is and they never sent an email to this person. Since this is the first time that we have setup access control list we have not see this but is there any way to stop this or another suggestion. We are trying to cut down the traffic but this may generate more traffic. Thanks Rick B 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/
