Enable SMTP Authentication for Windows Mail

Enabling SMTP authentication

1. Open Windows Mail.
2. From the Tools menu select Accounts. The Internet Accounts box appears.
3. Click on your HIS.com account to highlight it, then click the Properties button on the right. The mail account properties appear.
4. Select the Servers tab.
5. In the box marked Outgoing mail (SMTP) check that mail.his.com is selected.
6. Enter your username and password.
7. Check the box Remember password.
8. Under the Outgoing Mail Server section check the box My server requires authentication
   
9. Change the SMTP port number: Click the Advanced tab.
10. Change the Outgoing mail (SMTP) port number from 25 to 587 *
11. Click OK to close the Outgoing Mail Server box.  Click OK to close the Properties box.  Click the Close button. SMTP authentication has now been enabled.

* Note: An increasing number of cable and DSL providers (Comcast, Cox, Roadrunner, Verizon, etc...) are blocking the default SMTP port 25 except for their own mail servers. This is being done to help reduce the amount of spam sent from infected customer PCs.
Symptoms: you get an error sending mail, saying "could not connect to mail.his.com".
Solution:In order to send email through your HIS mail server from your cable/DSL account you will need to use SMTP port 587 for mail.his.com.