You can use the whitelist on the SMTP service for this purpose. Also as a clarification the sending server has to cross the invalid user threshold in one connection. For emails with less than that number of addresses it shouldn't make a difference as each message should be a different connection
HTH Eric S ----- Original Message ----- From: Bonno Bloksma To: IMail_Forum Sent: Thursday, January 04, 2007 2:05 AM Subject: [IMail Forum] feature request Hi, I know we can have a blacklist for ip-numbers in IMail. As far as I know this blacklist can, sort of, be populated, by IMail when to many invalid users errors happen during a session but...... My ISP has found a way to do user validation on the various backup mailservers for all the domains they are backup for, they simply set up a session to my server before the data part starts overthere and see if I want to accept the mail based on the sender and recipient info. If I refuse because of an invalid user then they wil refuse the mail as well. This is a nice way where there is no need to set up anything on the mailservers for which they are backup. If my server is down they will simply accept all mail. So.... for every mail they get with a non existent user they will try my server with that same user to see if the user exists. If I were to blacklist all servers attemting to deliver mail to non existent users I would blacklist them as well. I would need a whitelist overruling the blacklist. As fas as I know that feature is not in IMail, right? Met vriendelijke groet, Bonno Bloksma hoofd systeembeheer tio hogeschool hotelmanagement en toerisme begijnenhof 8-12 / 5611 el eindhoven t 040 296 28 28 / f 040 237 35 20 [EMAIL PROTECTED] / www.tio.nl
