Interesting situation. If all the junk mail is flowing straight to your iMail server externally you could just block outside access in to the mailserver @ port 25. This leaves the only true path _through_ your Barracuda device. The internal users stay unchanged, accessing the local mailserver internally but that may not be your situation. I am coming from a small business local users perspective here. I will be going this route myself soon, except with Symantec's SMTP 5.0 software.
Good luck! -matt -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Grant Griffith - IMail Sent: Thursday, June 22, 2006 8:47 AM To: [email protected] Subject: [IMail Forum] Junk Mail Bypassing Filtering Hello All, We are currently using a Barracuda Spam Firewall 400 and are having more and more junk mails somehow ignoring that our MX points to that firewall and then they send directly to our Imail server along with a Exchange server we are running. Has anyone found a way to stop this? We thought about either changing the port or blocking anything coming from anywhere other than the Barracuda. However that will force us to have to tell everyone to change their outlook settings to use port 587 to send mail and that would be a huge headache. Thanks, Grant Griffith Web Application Developer Enhanced Telecommunications Corp. (812)932-1000 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/
