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.
