How to Configure smtp relay office 365

Explore how configure smtp relay office 365 can improve your email deliverability and marketing efficiency.

An SMTP relay in Office 365 is a necessity for business users who need to send emails from applications or devices such as printers, scanners, or point-of-sale systems without using a dedicated email client. An SMTP relay ensures that emails sent from these sources reach their intended recipients without being flagged as spam. This guide will assist you in setting up an SMTP relay in Office 365 so that you can effectively use its robust email infrastructure.

SMTP (Simple Mail Transfer Protocol) relay lets you send emails from your application or device through an external mail server, which is Office 365. Using this method has its advantages, such as:

Enhanced Deliverability: Emails sent by using Office 365 SMTP relay do not easily appear as spam.

Reliability: It has a great uptime, and it includes inbuilt security.

Streamlined Management: Centralize your sending process of email through a single interface.

Before setting up SMTP relay in Office 365, you have to make sure that the following prerequisites are met:

Domain that has been verified in Office 365.

The following information is required for the SMTP relay setup:

Port: 587. Use this port with TLS encryption.

Authentication: Should be enabled. You will use your Office 365 credentials.

Step 2: Set up a Connector in Office 365

Sign in to the Microsoft 365 Admin Center:

From the left menu, go to Admin centers, and click on Exchange. Go to Mail Flow.

In the Exchange Admin Center, click on Mail flow and then click on Connectors. Click on the + icon to create a new connector. Choose From: Your organization’s email server and To: Office 365. Click Next.