Office 365 Smtp Relay Iis

You can skip this step if your office 365 smtp relay is non tls.

Office 365 smtp relay iis.

In the following section we will review all of the required settings for configuring the iis smtp server as a smtp relay 1. Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits. Part 2 configuring iis server as mail relay for office 365 environment. Microsoft 365 or office 365 smtp relay has higher sending limits than smtp client submission.

This connector will receive smtp relay transactions from the application or device. There are a few ways of doing this including simply setting up a single account in office 365 for continue reading setup an smtp open relay between an onsite windows server and. Are you trying to set up office 365 to relay email messages from line of business applications or network devices. Also the domain name should not match your email domain since you want to email to send via the smart host.

We can find the iis 6 0 manager under administrative tools internet information services 6 0. Enter the credentials of the office 365 user who you want to use to relay smtp mail. I wanted an open relay for email though an onsite windows server to office 365. If you ll be sending e mail via tls office 365 you need to import an ssl certificate in the server s local machine personal certificate store before you configure the iis smtp server.

Restart the iis service and the smtp service. To set up an smtp relay you must first create a connector in office 365 to accept smtp transactions. Check the event log. Before you attempt to create a connector be sure your account has the proper exchange online permissions.

Select outbound connections and in the tcp port box enter 587 and select ok. Microsoft 365 or office 365 smtp relay does not require the use of a licensed microsoft 365 or office 365 mailbox to send emails. Iis smtp relay lan interface. Check for a certificate.

After migrating a client to office 365 i needed a way of sending email from various applications and devices.