Inbound email addressed to:

1
ITS Managed Email Service - Logical View of
Spam Processing
Inbound email addressed to smu.edu or
mail.smu.edu

• MS IMF (Internet Mail Filter) Processing
• Score all email with Spam Confidence Level (SCL)
• Reject email with SCL 9 8

• Brightmail Anti-Spam Engine Processing
• Delete all Spam identified through multilevel
  evaluation including Honey Pot and Reputation
  Service

ITS Email Gateway Servers
Send email to Final Mailbox Destination
To Cox Engr

• ITS Mailbox Server Processing
• Send email with SCL 7 6 to Junk Email Folder
• Send email with SCL less than 6 to Inbox

• ITS Front-End Email Servers
• Handle all Client Send/Receive for
• Webmail
• POP3
• IMAP
• RPC over HTTPS

Note Guaranteed delivery for email from ITS
hosted mailbox to another ITS hosted mailbox
with NO Spam filtering involved!

• Various Email Clients
• Optional Spam Filtering for inbound email
  controlled by user depending on client-side
  software involved.

• On-Campus Outlook Client
• Optional Spam Filtering for inbound email
  controlled by user.

April 2007