In Microsoft Outlook 2007, Select Tools in the menu bar and then click on Account Settings. new window will appear.
On the E-mail tab, click on New button to open the Add New E-mail Account wizard, then click Next.
Please choose Microsoft exchange, POP3, IMAP, or HTTP option. Click Next to continue.
Check the option Manually configure settings or additional server types. Click Next to continue.
In the Choose E-mail Service screen, please choose Internet E-mail, then click Next.
On the Internet E-mail Settings window, enter the information that you have obtained from your administrator (Refer from table above). Check on the box next to Remember password so that you don’t have to enter it every time you send/receive email.
Click on the More Settings… button. This will open the Internet E-mail Settings window. On the Internet E-mail Settings window, go to the Outgoing Server tab.
Check the option My outgoing server (SMTP) requires authentication and make sure to choose Use same settings as my incoming mail server below.
Go to the Advanced tab, and then change the Incoming server (POP3) to 110, and the Outgoing server (SMTP) port to 25. Specifically for SMTP port, Some ISPs block the outgoing mail server port (25). Please change this port number to 26.
Click on OK.
The window will be closed and you will return back to the Internet E-mail Settings window.
Click Close and Finish.