How To Enable Email Forwarding in Outlook/Microsoft
1. Log in to Microsoft 365 Defender as a Microsoft 365 administrator and choose Email & collaboration > Policies & rules > Threat policies > Anti-spam policies or head directly to the Anti-spam settings page: https://security.microsoft.com/antispam
If you do not see those options or no policies display on that page, the Microsoft 365 user you have used to log in does not have sufficient permissions to make these changes. Make sure you are logging in as an administrator for your account. Note that the policies you see in your own admin may differ from those shown, as these are only the default policies.
2. Click on Anti-spam outbound policy (default) and scroll down to click the Edit protection settings link at the bottom of the sidebar.
Find the section called Forwarding Rules, and the dropdown list called Automatic Forwarding Rules. Pull that list down and choose On - Forwarding is enabled. Click Save at the bottom.
Note: This may take 30-60 minutes to come into effect.
Enable Automatic External Forwarding for Individual Mailboxes
1. Log in to Microsoft 365 Defender as a Microsoft 365 administrator and choose Email & collaboration > Policies & rules > Threat policies > Anti-spam policies or head directly to the Anti-spam settings page: https://security.microsoft.com/antispam
If you do not see those options or no policies display on that page, the Microsoft 365 user you have used to log in does not have sufficient permissions to make these changes. Make sure you are logging in as an administrator for your account.
Note that the policies you see in your own admin may differ from those shown, as these are only the default policies.
2. Click + Create policy and choose Outbound.
3. Give your new outbound spam filter policy a Name and Description. Click Next and search to find the user account you want to allow to forward, i.e. the email account that you are forwarding to Rechargly, which will display under the Users field after you select it.
4. Click Next again, scroll down to the Forwarding rules section, and click the dropdown under Automatic forwarding rules. Choose On - Forwarding is enabled, then click Next.
5. Review the settings on the last screen and click Create to create your new outbound policy for the specified user(s).
You may have other transport rules or spam policies in place at Microsoft 365 that block external forwarding in addition to the outbound spam filtering we've covered. If automatic external forwarding is still blocked after adjusting these policies, you will want to reach out to Microsoft 365 support for assistance.