MX records
2 articles tagged MX records.
Email migration cutover checklist: DNS TTLs, MX switch and day one
A practical cutover runbook for moving a domain's mail to Exchange Online: lower TTLs early, switch MX and Autodiscover safely, and support users on day one.
Enable inbound SMTP DANE with DNSSEC in Exchange Online and switch your MX
Step-by-step: move an Exchange Online accepted domain to its DNSSEC-capable mx.microsoft MX record, then turn on inbound SMTP DANE and verify the TLSA records.