O365 mail relay

A great topic!

In Office 365, a mail relay is a feature that allows you to forward incoming emails from your Office 365 organization to an external email server or service. This can be useful in various scenarios, such as:

  1. Migrating to Office 365: When migrating to Office 365, you may need to forward emails from your old email server to your new Office 365 organization.
  2. Integrating with third-party services: You may want to forward emails to a third-party service, such as a CRM system or a custom application, for processing or analysis.
  3. Compliance and regulatory requirements: In some industries or regions, there may be regulatory requirements to forward emails to a specific email server or service for archiving or compliance purposes.

To set up a mail relay in Office 365, you'll need to follow these general steps:

Step 1: Create a mail relay connector

  1. Go to the Office 365 admin center and navigate to Mail flow > Connectors.
  2. Click New connector and select Mail relay.
  3. Enter a name for the connector and select the type of relay you want to set up (e.g., forward emails to an external server).

Step 2: Configure the mail relay settings

  1. Enter the email address or domain of the external server or service you want to forward emails to.
  2. Configure any additional settings, such as the relay protocol (e.g., SMTP, EWS), authentication settings, and any specific routing rules.

Step 3: Test the mail relay

  1. Send a test email to the email address or domain you specified in the mail relay settings.
  2. Verify that the email is successfully forwarded to the external server or service.

Some important considerations when setting up a mail relay in Office 365: