From May 10th, 2008
How to change your outgoing SMTP server settings in Outlook Express: (For clients who can now receive 24x7.net.au email, but cannot SEND email.)
1. Open Outlook Express
2. Click " Tools "
3. Click " Accounts
"

4. Click the " Mail " tab

5. If it is not already highlighted click on your account to select it.
6. Click " Properties "
7.
Click the " Servers " tab

8. Ensure that the incoming mail server is mail.24x7.net.au
9.
Change the outgoing mail server to mail.24x7.net.au
10.
Under Outging Mail Server you will see that " My server requires
authentication " is ticked as it should be.

11. Click the " Settings " button

12.
Tick "Use same settings as my incoming mail server"
14. Click " OK "
15. Click " OK "
16.
Click " Close "