On-Premise IP Address Is Blocked By Exchange Online Protection – 550 5.7.606-649 Access Denied
Rajith Enchiparambil
Cloud Architect & Blogger with interests in Microsoft 365, AWS & Azure. I am active on Experts Exchange & TechNet forums and I am a technical author for SearchExchange. Follow me on Twitter, LinkedIn or Facebook for the latest updates. For consultancy opportunities, drop me a line.
i have the same issue. please help
Did you follow the steps in the article to unblock your IP address Lushan?