This will open a Mail Accounts window,
Select your account in the window and click on Properties.
On this window verify all information is correct and then click on the Servers tab.
On this window verify that the incoming and outgoing server is the last part of your email address.
For example.. email@example.com would enter presys.com for both servers.
firstname.lastname@example.org would enter pcinw.com for both servers.
email@example.com would enter oregonfcu.com for both servers.
Also verify that the username is your full email address.
Put a check mark in the box next to "My outgoing server (SMTP) requires authentication"
With that done you can now click on OK.
You should now be back to the Mail Accounts screen, click on Close.
That's it, You're DONE!