Office 365 Smtp Relay Iis

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.

Office 365 smtp relay iis.

I wanted an open relay for email though an onsite windows server to office 365. 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. We can find the iis 6 0 manager under administrative tools internet information services 6 0.

Before you attempt to create a connector be sure your account has the proper exchange online permissions. To set up an smtp relay you must first create a connector in office 365 to accept smtp transactions. Check for a certificate. Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits.

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. You can skip this step if your office 365 smtp relay is non tls. 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 outbound connections and in the tcp port box enter 587 and select ok.

After migrating a client to office 365 i needed a way of sending email from various applications and devices. Are you trying to set up office 365 to relay email messages from line of business applications or network devices. In the following section we will review all of the required settings for configuring the iis smtp server as a smtp relay 1. Restart the iis service and the smtp service.

Part 2 configuring iis server as mail relay for office 365 environment. This connector will receive smtp relay transactions from the application or device. You will see some valuable information about your configuration changes. Enter the credentials of the office 365 user who you want to use to relay smtp mail.

Also the domain name should not match your email domain since you want to email to send via the smart host.