With the Exchange Online service, you have access to the Exchange Online Protection service for anti-spam and anti-malware functions.
At times, you may find a legitimate email has been marked as Junk (a false positive) and want to allow this through for future emails. Alternatively, you may have received an email that should be blocked or handled as spam (a false negative).
The Exchange Online Protection service allows you to block emails based on the address they come from and the IP address of the sending server.
It is not recommended to configure Allow policies for free-mail domains such as outlook.com or yahoo.com.
You must be assigned the Exchange Admin role to make these changes.
Block or Allow by Email Address
Note: If you don’t see the Admin Centers section, press Show More | |
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Note: You can also add multiple entries per line separated by a semicolon.
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Block or Allow by Domain
Note: If you don’t see the Admin Centers section, press Show More | |
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Note: You can also add multiple entries per line separated by a semicolon.
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Block or Allow by IP Address
Note: If you don’t see the Admin Centers section, press Show More | |
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Note: You can block ranges of IPs by entering them in CIDR format (Only /24 & /32 are supported)
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