Returned mail from some email addresses

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

The following message to <[email protected]> was undeliverable. The
reason for the problem: 5.1.0 - Unknown address error 550-'5.1.1 unknown or
illegal alias: [email protected]'

I get this message when I send to some email addresses but not all. I can
send to this email address from my earthlink web mail.

Thanks
 
Is there any thing in common with the addresses that do or don't work?
 
Not that I have noticed. I am going to try installing all Office updates and
see if that help.
 

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