Of the five primary Relay Options that Imail provides ("for anyone, no
relay, for local hosts, for local users, for addresses") is "relay for
anyone" the only option that is technically considered an "open relay"?We've always used "relay for local hosts", but several months ago someone spammed a huge amount of messages through our server over a 24 hour period. The messages appeared to be sent from our client's email account, but we know that that client was not responsible for sending the spam. Almost immediately Spam-Cop warned me to secure our "open relay" and several helpful email admins looked at the header details and warned me that some type of spoofing might be going on. I never fully understood the nature of the intrusion and I've wondered since if the "no relay" setting would have prevented the situation. Are the "Relay for local hosts, for local users, and for address" options essentially useless as security if a spammer can simply send messages using your own accounts? -Keith 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/
