Returned mail

[nosrednabob]

For the last several weeks all of my emails to "montanabetty@montana.net" have been returned with the message that the address had "permanent fatal errors"
(reason: 551 User not local, and 554 5.0.0 Service
unavailable). Previously the address worked fine. Also, montanabetty tells me that no one else is having trouble emailing her at this address.

Can anyone tell me what I'm doing wrong?

Thanks, Bob Anderson, Summitville, NY

 

[Del]

Have you tried calling your ISP? Sometimes one ISP block another because of SPAM.
I would call your ISP first to make sure they are not blocking montana.net. It could also be, montana.net blocking your ISP.

 

[nosrednabob]

Del: I'll try contacting both ISPs.
Thanks, Bob