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How to access and use EOP (spam filter) for your department email account.

This article will show you how to access the EOP tool on, and how to allow and block specific addresses. EOP (Exchange Online Protection) is the new spam filter replacing the Barracuda appliance as the spam filter for All EPSS department email accounts. (both and*)

* accounts that have not migrated off of the legacy Zimbra server will continue to use the barracuda appliance until the account is migrated to Enterprise messaging. If you have questions, please email

Access EOP.

The EOP tool is available in the Microsoft outlook desktop client application, and online through office365. this guide will cover using the tool via the web interface, as this method will work for all users in EPSS.

  1. Sign into your department email account online via office 365, using these instructions.
  2. After signing in, navigate to to view quarantined messages and deliver or dispose of them.
  3. For detailed instructions from Microsoft, please see here:

Mark senders as safe, or block senders

  1. Sign into your department email account online via office 365, using these instructions.
  2. Once you have signed in to office 365, please open the outlook application, from the left side menu:
the outlook icon in the left side menu.

3. click on the settings icon in the upper right corner of the screen (shaped like a gear).

settings icon in upper right corner of screen

4. Click on this icon, and at the bottom of the side menu that opens, choose “View all outlook settings”.

click the “view all outlook settings link to open the full settings”

5. Click on “mail” > “junk email” to edit and view EOP settings.

view of the settings menu, and EOP options

6. From this view, you can click to add individual accounts to either the allow or block lists. accounts listed under “safe senders and domains” will not be marked as spam. YOU CAN ONLY ADD INDIVIDUAL ACCOUNTS TO THESE LISTS, NOT ENTIRE DOMAINS. If you need to allow all mail from a specific domain, please email the helpdesk ( to request this, and EPSS IT will work with campus to create the entry. (an example: if emails from are regularly getting marked as spam)

Please Make sure that you have the option under “reporting” set to “automatically send reports” to make sure you know when messages are being flagged, and to be sure you don’t miss any important communications.

If you have questions, or problems using this system, please report the issue with as much detail as possible to and the EPSS IT staff will do our best to resolve the problems.