How to Enable SMTP-Auth in Outlook Express
1 Select the Tools menu and click Accounts:
2 Select the Mail tab:
3 Highlight your A1 or BMP account and click the Properties button:
4 Select the Servers tab:
5 Check the box labelled My server requires authentication:
6 Check the OK button:
7 Click the Close button:
Done.
You should be able to send/receive as normal. Thanks for your time.