Jim,

I am sure I understand your email correctly. Which emails are you forwarding? Could you please give me an example? I am providing an email below. Let me know if my understanding is correct.

• Assume your email address is jim@example.com
• You get a message from aFriend@yahoo.com
• Your goal is to forward this message to jim@gmail.com

Is this correct? If yes, are you using Xeams to forward the message or doing it from your Outlook?

Also, you cannot use URL Sandbox to remove DMARC signatures. DMARC is added to an email header, not its body. They are not URLs.