Hello, I have a domain on Godaddy. I bought the office365 email service for this domain, when I try to send out emails I automatically receive this mail:
Delivery has failed to these recipients or groups:
Your message wasn't delivered because the recipient's email provider rejected it.
Diagnostic information for administrators:
Generating server: AM4PR0202MB2722.eurprd02.prod.outlook.com
Remote Server returned '550 5.7.708 Service unavailable. Access denied, traffic not accepted from this IP. For more information please go to http://go.microsoft.com/fwlink/?LinkId=526653 AS(8561)
1) What is your domain - It could have something to do with your SPF record
2) Are you using Outlook (desktop) or online?
3) Can you try sending via a different device / network - for example if you are on wifi - can you send from your cell phone (not on wifi)
I've seen that sometimes a local IP address gets blocked and although you are sending via Office365, it still has your local IP address behind the scenes
Once your issue is resolved,
please be sure to come back and click accept for the solution