553 and 5.7.1 Errors Standalone POP3 sending Mail

  • Thread starter Andre Southgate
  • Start date
A

Andre Southgate

Hi There!

I have a client with Outlook 2003 Standalone with POP3 Mail hosted at her ISP.

When she creates messages whilst without an internet connection, and brings it back home to send,
every message regardless, gets bounced back undeliverable with the error:

553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

It does not appear to be coming from the ISP but from outlook itself.

I have tried new profiles and all manner of other things, fully patched etc, can't get it to stop.

If she clicks on Send Again, it sends ok whilst connected to the internet.

I really need some urgent help with this please.
 

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