Look at the X-Mailer header For example:
X-Mailer: Microsoft Outlook Express 5.00.2314.1300 for an Outlook Express message. or X-Mailer: Internet Mail Service (5.5.2653.19) for an Exchange server (most often Outlook client) X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 for a raw Outlook desktop client. X-Mailer: Mozilla 4.78 [en]C-SYMPA (Win98; U) Is Netscape Version numbers will differ of course. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Michael Cobb Sent: Tuesday, November 27, 2001 22:17 To: [EMAIL PROTECTED] Subject: Filtering e-mail from outlook users Folks, I have a customer who has asked the "best" way to filter, remove, not accept and or disallow ALL e-mail sent to their domain from ALL users of outlook regardless of version. The key word here is "best" way. These people want ALL e-mail sent by anyone running an outlook client wacked and they also want a message sent back to the user explaining the reason for the bounced mail. Quite frankly, I applaud their decision but let's not debate the "why do the want to do that" when we all know the answer to that question. Regards Michael Michael Cobb President/CEO Cobb Communications Corporation 760-443-9700 _______________________________________________ Firewalls mailing list [EMAIL PROTECTED] http://lists.gnac.net/mailman/listinfo/firewalls
