have an Exchange 5.5 SP3 server servicing 60 Outlook 2000 clients. About half the clients keep getting the following error when sending email to reciepients outside the company:
No transport provider was available for delivery to this recipient
Everyone here is using Outlook 2000. We are using Exchange 5.5 for internal
emails which work fine. If I remove the exchange service off the client I
can then send emails outside from those users that were having the problem.
Now it doesn't happen to everyone and we can all receive emails from outside
the company. I have checked the settings on the users that are having
problems and they are all correct.
I tried moving the exchange services in the delivery tab to the top of the list and that did not work either.
Any help is greatly appreciated