Emails Bounce when sending to plans@dyedurhamterrain.com

You are trying to send your survey plans by forwarding an email with attachments to plans@dyedurhamterrain.com 

You see something similar to the following.

Delivery has failed to these recipients or groups:

plans@globalxterrain.com (plans@globalxterrain.com) 
Your message wasn't delivered because the recipient's email provider rejected it.

Diagnostic information for administrators:

Generating server: SY2PR01MB2297.ausprd01.prod.outlook.com

plans@globalxterrain.com 
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)'

Some Microsoft 365 accounts default to block automatic email forwarding as part of their outbound spam protection.

To change the outbound spam protections settings, contact your Microsoft 365 administrator and ask them to allow automatic external forwarding for any mailboxes you want to use with plans@dyedurhamterrain.com