If the settings for the email system are set and it is still failing the test please do the following.

In MSDSpro Client

Click Admin->Special Functions->Preferences

On the Email tab

Send me a screen shot of the data here

Make sure that Send all email from server is unchecked

Check enable logging

In the text box enter a path and file name for the log.

Ex. C:\Program Files\MSDSpro Client\email.txt

Click Test email

Uncheck enable logging

Send the file from the log