TEMPORÁRIO

Cenário 3: o registro MX aponta para os meus próprios servidores locais in TEMPORÁRIO

https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-mail-flow-for-multiple-locations#scenario-3-mx-record-points-to-my-on-premises-servers

Configurar conectores para rotear e-mails entre o Microsoft 365 ou Office 365 e os seus próprios servidores de e-mail in TEMPORÁRIO

https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/use-connectors-to-configure-mail-flow/set-up-connectors-to-route-mail