Why am I getting 'Undeliverable' or 'Access denied' when forwarding from Outlook?

If you receive an error like "550 5.7.520 Access denied, Your organization does not allow external forwarding", your company's Microsoft 365 admin has blocked external email forwarding as a security policy.

🔧 Solutions:

1. Ask your IT admin to whitelist receipts@expensebot.ai as an allowed external forwarding destination
2. Forward from personal email — if you have a Gmail, forward receipts through that instead
3. Upload directly — use ExpenseBot's camera, Google Photos import, or drag-and-drop upload instead of email forwarding

📍 For IT Admins: The setting can be found in Microsoft 365 Admin Center → Exchange → Mail Flow → Remote Domains, or via PowerShell using Set-RemoteDomain.

This is a Microsoft 365 organization policy, not an ExpenseBot limitation. The email never reaches ExpenseBot when this policy is enabled.