---
title: Microsoft Exchange SMTP Relay
description: "# ![](https://www.mail.baby/wp-content/uploads/2021/03/exchange-1024x512.jpg) # Mail Baby is easily configurable on Microsoft Exchange. Use the tutorial below to set up Exchange to send outgoing email to Mail Baby. #### Login to the Exchange Admin Center. The URL usually looks like this https:///ecp/…"
url: "https://www.mail.baby/tips/exchange/"
updated: "2023-09-13"
category: Tutorials
---

# Microsoft Exchange SMTP Relay

# ![](https://www.mail.baby/wp-content/uploads/2021/03/exchange-1024x512.jpg)

# Mail Baby is easily configurable on Microsoft Exchange. Use the tutorial below to set up Exchange to send outgoing email to Mail Baby.

#### Login to the Exchange Admin Center. The URL usually looks like this https://<yourmailserver>/ecp/

 ![](https://mail.baby/wp-content/uploads/2020/10/exchange-login.png)

#### Click on Mail Flow > Send connectors > + to add a nw send connector

 ![](https://mail.baby/wp-content/uploads/2020/10/name-send-connector.png)

#### Name the send connector. In this example, we will call it MailBaby.

 ![](https://mail.baby/wp-content/uploads/2020/10/add-smart-host.png)

#### Select "route mail through smart hosts" and click + to add.

#### ![](https://mail.baby/wp-content/uploads/2020/10/add-smart-host-hostname.png)Input the hostname 'relay.mailbaby.net' click Save. You will return to the previous screen above. Click Next.

 ![](https://mail.baby/wp-content/uploads/2020/10/smart-host-authentication.png)

#### *Select basic authentication and input your username and password. The username starts with 'mb' followed by a number. You can find your username and password inside my.interserver.net.*

 ![](https://mail.baby/wp-content/uploads/2020/10/Address-Space-e1602601807584.png)

#### *Click on + to add new address space. Type SMTP, FQDN as \* and cost of 1. If you have other send connectors configured the cost needs to be higher on the others.*

 ![](https://mail.baby/wp-content/uploads/2020/10/source-server2.png)

#### Select your source server. This will look different depending on how your exchange servers are configured.

#### Click finish. Your configuration should be complete.