Certificate-based connector configuration: Make sure your on-premises email server is configured to work with a certificate to mail email to Microsoft 365, as well as the Frequent-Identify (CN) or Issue Alternate Title (SAN) from the certificate consists of a domain name you have registered in Microsoft 365, and you have https://thebookmarkfree.com/story17226048/rumored-buzz-on-company-dns-server-install