Certificate-dependent connector configuration: Be certain that your on-premises email server is configured to use a certificate to send email to Microsoft 365, as well as the Prevalent-Name (CN) or Matter Alternate Title (SAN) inside the certificate incorporates a domain title that you have registered in Microsoft 365, and you have https://hubwebsites.com/story18386853/5-tips-about-mysql-performance-tuning-you-can-use-today