Hello,
Internet Email Auto-Protect protects both incoming email messages and outgoing email messages that use the POP3 or SMTP communications protocol over the Secure Sockets Layer (SSL). When Internet Email Auto-Protect is enabled, the client software scans both the body text of the email and any attachments that are included.
About Auto-Protect and email scanning
http://www.symantec.com/docs/TECH95093
You can enable Auto-Protect to support the handling of encrypted email over POP3 and SMTP connections. Auto-Protect detects the secure connections and does not scan the encrypted messages. Even if Internet Email Auto-Protect does not scan encrypted messages, it continues to protect computers from viruses and security risks in attachments.
If you use Microsoft Outlook over MAPI or Microsoft Exchange client and you have Auto-Protect enabled for email, attachments are immediately downloaded. The attachments are scanned when you open the attachment. If you download a large attachment over a slow connection, mail performance is affected. You may want to disable this feature if you regularly receive large attachments.
Email attachments are frequently the culprits in virus attacks. To protect yourself from viruses transmitted through email attachments:
- Don't open any attachment you were not expecting, even if it comes from a trusted source, such as a family member, co-worker, or friend.
- If you do not know the sender of a message that includes an attachment, delete the message without reading it.
- Do not open any attached file ending in .exe, .vbs, or .lnk.
- Never open an attachment without verifying that it's virus free. To open an attachment, first save it to your hard drive and then scan it with antivirus software, such as Symantec Endpoint Protection.
Incase of Suspicion, it is recommended to submit the Attachment to the Symantec Security Response Team on https://submit.symantec.com/essential
The Exchange servers have nothing to with the Outlook mail scanning plugin. This is completely client-side. Your Exchange servers would have something like Mail Security for Microsoft Exchange scanning the server-side traffic.
OR
Using Symantec Support Tool, how do we Collect the Suspicious Files and Submit the same to Symantec Security Response Team.
Hope that helps!!