Office 365 Smtp Relay Iis

Mail relay to office 365 from iis smtp relay verify you are not using integrated windows authentication and you are using basic authentication for outbound security.

Office 365 smtp relay iis.

Iis smtp relay lan interface. We can find the iis 6 0 manager under administrative tools internet information services 6 0. Are you trying to set up office 365 to relay email messages from line of business applications or network devices. Check for a certificate.

Part 2 configuring iis server as mail relay for office 365 environment. 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. Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits. You will see some valuable information about your configuration changes.

Also the domain name should not match your email domain since you want to email to send via the smart host. I wanted an open relay for email though an onsite windows server to office 365. Check the event log. In the following section we will review all of the required settings for configuring the iis smtp server as a smtp relay 1.

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. Select outbound connections and in the tcp port box enter 587 and select ok. You can skip this step if your office 365 smtp relay is non tls. To set up an smtp relay you must first create a connector in office 365 to accept smtp transactions.

Restart the iis service and the smtp service. After migrating a client to office 365 i needed a way of sending email from various applications and devices. Microsoft 365 or office 365 smtp relay has higher sending limits than smtp client submission. As you are configuring the smtp server in iis6 go to event viewer and filter the system log on source smtpsvc.

Before you attempt to create a connector be sure your account has the proper exchange online permissions.