How to manually setup Microsoft Outlook Express
1) Open Outlook Express
2) Click "Tools" then click "Accounts"
3) Click "Add"
4) Click "Mail"

In the box that pops up, type in your name and click next.

In the next box, type in your email address and click next.

In the next field, type mail.yourdomain.com in both fields as shown below and click next.

In the account name field, type your email address, in the password field, type your password and click next.

After the wizard closes, you will see the below box. Select your email account and click "Properties"

Click the top tab that says "Servers" and in the servers tab there will be a checkbox at the bottom as shown below,
Make sure that the box that says "My server requires authentication" is checked.

If your ISP has blocked the default port 25 SMTP port, you can use port 2525 by clicking the advanced taband changing the SMTP port from 25 to 2525 as seen below. Remember to click okay to save your settings.
