Office 365 Smtp Relay Settings

Go to admin settings click show all settings first domains.

Office 365 smtp relay settings. Microsoft 365 or office 365 smtp relay does not require the use of a licensed microsoft 365 or office 365 mailbox to send emails. Select your domain and note the mx record. Features of microsoft 365 or office 365 smtp relay.

The smtp relay server that wants to relay mail to the office 365 mail infrastructure will need to provide credentials username password using the basic authentication protocol. However when using office 365 you may have to configure an smtp relay on your mail server s end for it work correctly. Setting up office 365 connector for mail flow.

Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits. This connector will receive smtp relay transactions from the application or device. Login to office 365 and from the top menu select admin admin centers exchange click mail flow on the left menu.

To set up an smtp relay you must first create a connector in office 365 to accept smtp transactions. Microsoft 365 or office 365 smtp relay has higher sending limits than smtp client submission. Setting up or updating the office 365 smtp server with ip authentication create an inbound connector with ip authentication.

Follow the below steps to set this up.