[NTLK] Followup on Dr. Newton question

[NewtonTalk]

So far, so good...

My mail set to dr11newton22 at 33maplenet44.net (without the numbers) was
rejected. Whatever that means. I kind of doubt that David would set up his
mail system to reject mails from me. But maybe one of you could send him a
mail and check if it's rejected, too?

For what it's worth, this is what I got:

Last error: 550 5.0.0 
Explanation: host maplenet.net.mx1.virtacore.rcimx.net [208.80.206.24] said:
Rejected
Excerpt from the session protocol:
... during the communication with teh mailserver
maplenet.net.mx1.virtacore.rcimx.net [208.80.206.24]:
>>> RCPT TO:<dr11newton22 at 33maplenet44.net (without the numbers)>
<<< 550 Rejected

Thanks

Frank