Whitelist Domain in Office365

Updated 4 weeks ago by James Dunn

Having trouble with our automated emails getting blocked or delayed? Adding file.ac to the allowed domains list will enable them to bypass the spam filter. Here's how:

Allow domain to bypass SPAM filtering in Microsoft Office 365

To whitelist a domain in Office 365, follow these steps:

  1. Sign in to Microsoft 365 Defender portal
  2. Click on Policies & rules in the menu
  3. Choose Threat policies in the list
    Whitelist domain in Office 365 to bypass SPAM filtering threat policies
  4. Select Anti-spam inbound policy (Default).
Whitelist domain in Office 365 to bypass SPAM filtering anti-spam inbound policy
  1. Scroll down and click on Edit allowed and blocked senders and domains.
Edit allowed and blocked senders and domains
  1. Click on Allow domains.
Whitelist domain in Office 365 to bypass SPAM filtering allow domains
  1. Fill in the domain that you want to allow file.ac
  2. Click Add domains
Whitelist domain in Office 365 to bypass SPAM filtering add domain
  1. Click on Save.
Save settings

You have now added file.ac to the Office 365 spam filter allow list. From now on, all the emails with that domain will not be marked as SPAM.

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