My email to a given adress wont send.

The error means the recipient domain does not exist in DNS.

554 5.4.0 ... 550 5.4.310 DNS domain [ordertomail.net] does not exist [Message=InfoDomainNonexistent]

In practice, Outlook.com tried to deliver the message, but the destination domain ordertomail.net could not be found. That usually means one of these:

1. The reply address contains a typo.
2. The company is using an old or invalid reply address.
3. The recipient’s mail domain is no longer registered or is misconfigured.

What to do:

1. Check the reply address carefully for spelling mistakes.
2. Delete the saved address from Auto-Complete and type it again manually.
3. If the address came from a company message, contact the company another way and ask whether that reply address is still valid.
4. If they provide a different address, resend to that address.

This is not caused by the Outlook.com sending service on the sender side. The failure is on the recipient address/domain side.

• Sent email in Outlook.com comes back "delivery failed"
• Failed delivery messages from the postmaster at outlook.com, microsoft.com, or service.microsoft.com
• Delivery has failed to these recipients or groups - Microsoft Q&A