Outlook error message

A

Angela Mackie

Can anyone help?

We are getting the following undeliverable message when
trying to send e-mails:

550 Recipient Not Authorised (recipient rejected due to
no authorised destination groups)

This is not happening on all addresses - approx 75% are
returning this message. We have checked with our service
provider and they are happy that everything is working at
their end.

Many thanks
 
V

Vince Averello [MVP-Outlook]

Hmmm, is it possible that your provider's SMTP server is blacklisted by some
of the engines on the Internet?
 

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