But most of those are not blocking port 587 for SMTP AUTH. Also, having users use your servers for their outgoing email instead of an ISPs server makes for easier access when users travel with a laptop, and also makes putting in SPF records much easier.
Darin. ----- Original Message ----- From: "Rod Dorman" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 03, 2004 5:10 PM Subject: Re: [IMail Forum] Great MX firewall to put in front of your imail server On Friday, December 3, 2004, 16:49:26, Sanford Whiteman wrote: >> ... > I'm afraid you're going to have to get your mind around pushing out a > port change to your users. Of the client-side modifications (use ISP's > outbound, force VPN first, change SMTP port) it's the easiest to roll > out. Ultimately, anything unprotected that accepts unauthenticated > mail for your local domain--even if on a non-well-known port--will be > vulnerable, but for now the port change offers the best balance of > rollout-ability and protection. In addition to what Sandy mentioned theres also the movement (finally) of many ISPs to block outgoing SMTP to anything other than their servers. If you start migrating 'outside' users to a new method now you'll avoid the inevitable panic calls later. -- [EMAIL PROTECTED] "The avalanche has already started, it is too Rod Dorman late for the pebbles to vote." � Ambassador Kosh 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/
