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Troubleshooting forwarding from Microsoft 365

This is a troubleshooting article for auto-forwarding from Microsoft 365 while setting up your mailbox.

The Problem: When setting up auto-forwarding from Microsoft 365 to your Replypad mailbox, you may encounter the following error when testing:

Remote Server returned '550 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS(7555)'

The Solution: Enable forwarding in Microsoft 365

In order to enable auto forwarding, a Microsoft 365 administrator should configure 365 mailbox forwarding (also known as SMTP forwarding) to automatically forward messages to your Replypad mailbox.

The admin can choose whether to simply forward messages, or to forward messages and keep copies of forwarded messages in the 365 mailbox.

Technically what admins should do is create an outbound policy that enables forwarding:

  1. Follow the steps in this Microsoft 365 article: Use the Microsoft 365 Defender portal to create outbound spam policies
  2. Note: In the above article, when choosing “Users, groups, and domains” (Step 4) – this is where you need to choose the Replypad mailbox you want to enable forwarding for.

That’s it! You can now start working with the Replypad inbox.

You can now try sending a test email to verify mailbox settings.