So I'm trying to configure an outbound Spam filter Policy to prevent a user from always getting thrown in the Restricted Users bin. The Policy I created was very standard and I want it to apply to the user in the screenshot However once it is created it looks as if the Custom outbound Spam policy only applies to users who are recipients of the sending user in the tenant. (internal to internal communication within the tenant) I want this policy to apply to all outbound messages sent from TU@mictestacc123.onmicrosoft.com (even users on other domain) not just ones sent to other users within the tenant. Is this possible?

Hi, foxx109 The way your policy is set, my understanding is that it will do what you want it to do. Is this not what you are experiencing? Also, does the default outbound spam policy in the Security and Compliance Center not meet your needs anyway? Kind regardsPeter

Outbound Spam Filter Policy | Microsoft Community Hub

12 Replies

Michael Platt
Brass Contributor
Dec 05, 2020
foxx109 Any idea why a "default" outbound spam filter would not via viewable via the GUI? We have a ticket open with Microsoft support but they are stumped. How to we bring this back. Right now we are getting NDRs for all outbound external forwarding.
PeterRising
MVP
Apr 14, 2020
Hi, foxx109

The way your policy is set, my understanding is that it will do what you want it to do. Is this not what you are experiencing?

Also, does the default outbound spam policy in the Security and Compliance Center not meet your needs anyway?

Kind regards
Peter
- Michael Platt
  Brass Contributor
  Dec 05, 2020
  PeterRising Any idea why a "default" outbound spam filter would not via viewable via the GUI? We have a ticket open with Microsoft support but they are stumped. How do we bring this back. Right now we are getting NDRs for all outbound external forwarding.
  - Michael Platt
    Brass Contributor
    Dec 05, 2020
    Michael Platt Here is a screenshot when logged in as global admin.
- foxx109
  Copper Contributor
  Apr 14, 2020
  PeterRisingthank you kindly for your response
  The default outbound spam policy works fine, I was trying to configure one of these for a specific user who sent a lot of mail that was getting flagged as SPAM (that it the nature of there job) and kept getting thrown in the restricted users bin
  
  I'm just surprised in the second screenshot where it says
  If this message is received from: TU@mictestacc123.onmicrosoft.com (it is highlighted)
  
  I thought it was say,
  if this message is sent from: TU@mictestacc123.onmicrosoft.com
  
  Since it is an outbound Spam Policy and I want it to apply to outgoing messages
  It almost makes me think that the policy is only for internal to internal communication
  
  https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/configure-the-outbound-spam-policy?view=o365-worldwide
  
  The article makes it sounds like it is for outbound messages, IDK am i missing something?
  - PeterRising
    MVP
    Apr 14, 2020
    foxx109
    
    It's very misleading that it's labeled recipients I agree, but the users you place in here will be targeted by the outbound policy. 👍

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Outbound Spam Filter Policy

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