In some cases, invoice forwarding from Xero, MYOB or other vendors may fail due to your organisation’s email security settings. This typically results in a 550 5.7.520 Access Denied error, indicating that external forwarding is blocked.
What the email may look like
Delivery has failed to these recipients or groups:
Your message wasn't delivered because the recipient's email provider rejected it.
Diagnostic information for administrators:
Generating server: ME0P282MXXXXX.AUSP282.PROD.OUTLOOK.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)'
Steps to Resolve
At the top window of the new Outlook, select Settings ⚙️
Select Mail > Forwarding.
Toggle the Enable forwarding switch
Enter your unique Rechargly email address (imports+XXXXX@rechargly.com) from the Setup page as forwarding email address,
Select Save.