Smtp Relay Office 365

Another option is to use the direct send option that i will describe later on.

Smtp relay office 365. You will need to create an app password for this. Office 365 imap settings. There are several ways to configure email to be sent through your office 365 mailbox.

This allows microsoft 365 or office 365 to relay those messages to your own mailboxes as well as external recipients. Any email address including non office365 mailboxes can send mail using an smtp relay as long as it uses a domain that s set up as yours in office 365. 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.

Smtp relay client smtp submission or direct send. However when using office 365 you may have to configure an smtp relay on your mail server s end for it work correctly. Before you attempt to create a connector be sure your account has the proper exchange online permissions.

If you have mfa enabled for your account then you can t use your normal password to authenticate the office 365 smtp settings. If you need more you will need to use the smtp relay. Mail to domains not hosted on office 365 will be delivered directly from the iis smtp server to the final destination it will not pass through the office 365 smtp servers.

Log in to your office 365 tenant open the exchange admin center and click mail flow and click connectors. Microsoft 365 or office 365 smtp relay uses a connector to authenticate the mail sent from your device or application. Let s look at how you can set up smtp settings in the microsoft office 365 mail server.

Use smtp client submission aka smtp auth that s what we ll be covering use a dedicated relay connector to send emails through the office 365 smtp relay. The sending app must authenticate with office 365. To set up an smtp relay you must first create a connector in office 365 to accept smtp transactions.