Office 365 Smtp Relay Iis

Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits.

Office 365 smtp relay iis.

Are you trying to set up office 365 to relay email messages from line of business applications or network devices. Iis smtp relay lan interface. You can skip this step if your office 365 smtp relay is non tls. Check for a certificate.

Restart the iis service and the smtp service. As you are configuring the smtp server in iis6 go to event viewer and filter the system log on source smtpsvc. You will see some valuable information about your configuration changes. This connector will receive smtp relay transactions from the application or device.

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 does not require the use of a licensed microsoft 365 or office 365 mailbox to send emails. 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.

Enter the credentials of the office 365 user who you want to use to relay smtp mail. 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. In the following section we will review all of the required settings for configuring the iis smtp server as a smtp relay 1. After migrating a client to office 365 i needed a way of sending email from various applications and devices.

We can find the iis 6 0 manager under administrative tools internet information services 6 0. 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. Before you attempt to create a connector be sure your account has the proper exchange online permissions. 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.

Select outbound connections and in the tcp port box enter 587 and select ok.