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RJRSShan-7225 avatar image
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RJRSShan-7225 asked AndyDavid answered

Exchange Online Delete Blocklist Email before delivery

Hi Everyone,

We are using Exchange Online, we block certain email IDs using Anti-Spam policy. These emails are being marked as spam and following the Spam policy settings.

What is the best way to drop these emails before delivery?

Thanks

office-exchange-online-itpro
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@RJRSShan-7225
Any update about this thread now? Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics.

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AndyDavid avatar image
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AndyDavid answered

If you want to delete only specific messages from specific senders, then I would create a mail flow rule to delete those messages and not block them in the anti-spam policy

https://docs.microsoft.com/en-us/exchange/policy-and-compliance/mail-flow-rules/mail-flow-rule-procedures?view=exchserver-2019

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KyleXu-MSFT avatar image
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KyleXu-MSFT answered AndyDavid converted comment to answer

Here is detail information about how EOP works:
16292-snipaste-2020-08-07-13-40-19.png

If you want to prevent email from delivery to user mailbox, you need to use "Mail flow rules" or "Anti-Spam" to block emails. Both of them could redirect email to quarantine instead of the intended recipients. You can also configure policy to delete them directly.

Here is a screenshot about configuring Anti-Spam policy to delete email before delivering to mailbox:
16341-snipaste-2020-08-07-13-46-34.png



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@RJRSShan-7225
Haven't received your update for a long time, any update now?
If the above suggestion helps, please be free to mark it as answer for helping more people.

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AndyDavid avatar image
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AndyDavid answered

If the requirement is to "block certain email IDs".
Use a Mail Flow rule to do this
or block by sender in the anti-spam policy
https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/create-block-sender-lists-in-office-365?view=o365-worldwide

Create blocked sender lists in EOP






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