I was assuming that virus spammers might be able to use MAPI profiles to send using the proper authentication.
If that's not the case, then why switch to 587? Let's just strongly encourage everyone to use AUTH and keep from having to walk every user in the world through switch their outgoing port to 587... Darin. ----- Original Message ----- From: "Sanford Whiteman" <[EMAIL PROTECTED]> To: "Darin Cox" <[EMAIL PROTECTED]> Sent: Monday, August 02, 2004 2:15 PM Subject: Re: [IMail Forum] BellSouth now blocking port 25 > ...and I wonder how long before ISPs start blocking 587. Certainly > it doesn't take much for spammers to switch to 587 as well. The most current concept of 587 is as an _authenticated_ submission port. IMO, if you have the port open, you should be running "AUTH only" on 587 (for any submission, no matter what the destination domain), which will prevent spammers from substantive abuse of the facility. --Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] SpamAssassin plugs into Declude! http://www.mailmage.com/products/software/freeutils/SPAMC32/download/release/ Defuse Dictionary Attacks: Turn Exchange or IMail mailboxes into IMail Aliases! http://www.mailmage.com/products/software/freeutils/exchange2aliases/download/release/ http://www.mailmage.com/products/software/freeutils/ldap2aliases/download/release/ 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/
