Trouble sending Email

[klcraft]

I have an Exchange server that handles my internal email and an external pop
site. When I upgraded three clients to Outlook 2003, we can no longer send
external email, unless the pop site is listed in the properties as the
default site. If it is the default site, we can no longer send email through
the Exchange server internally. To send internally, we have to select the
Exchange site at the default site. This problem does not exist with the rest
of my clients who are running Outlook 2000. The settings are the same as
before when I had Outlook 2000 on these clients. Why isn't Outlook 2003
differentiating between internal and external address like Outlook 2000 does?
How can I fix this major problem? Thanks!

 

[Clayton]

What I would try is this,

Set Exchange as the default.
On the pop client, go into "More settings"
On the "Outgoing server tab"
Click on "My outgoing server (smtp) requires authentication"
Click the "Log on using button and enter the corect info.

Then try it again.
You might can click on "use same settings as my incoming server"

Clayton