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What are the differences between Brightmail Spam Quarantine and O365 Spam Filtering?

Overview

In late 2018, Information Systems and Technology (IS&T) migrated email security infrastructure to a cloud-based platform, Microsoft Office 365. This resulted in switching from Brightmail's Spam Quarantine email filtering system to Microsoft's Exchange Online Protection. While they work largely the same in that mail is filtered before it reaches your inbox and you receive daily notification emails of quarantined messages, there are a few differences.

Differences

Feature Brightmail Spam Quarantine (Old)
0365 Spam Filtering (New)
Quarantine Emails Subject: Spam Quarantine Summary
Address: spamquarantine@mit.edu
Subject: Spam Notification: # New Messages
Address: quarantine@messaging.microsoft.com
Web Management
https://mailsec-cc.mit.edu:41443/brightmail https://protection.office.com/
Good and Bad Senders Lists White List and Black List Safe Senders and Blocked Senders
Blocking any internal senders (with an @mit.edu address) is not allowed. A workaround is to use rules/filters.
Quarantine Message Release Releases message to your inbox.
Releases the message to your inbox from the quarantine and defaults to sending Microsoft a copy of the message for refinement of the filtering appliance. You can opt out by unchecking the "Report messages to Microsoft for analysis" box. This does not apply to releasing messages from the quarantine email messages, only directly from the quarantine.
Opt out of Spam Quarantine
Could be done using wildcards in the allow list to allow everything to pass through.
Does not allow wildcards.
Use wildcards in the allow list
Yes
No

See Also:

IS&T Contributions

Documentation and information provided by IS&T staff members


Last Modified:

January 16, 2019

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