Office 365 Anti-Spam IP Delist Portal
If you're trying to send mail to an Office 365 recipient and the mail has been rejected because of your sending IP address, follow these steps to submit a delisting request.
Senders are responsible for making sure that their mail from this IP address isn't abusive or malicious.
- Step 1: Send verification
- Step 2: Confirm email address
- 3. Delist IP
Step 1: Provide your email address and the IP address you want to delist so they can be verified.