Open IncrediMail.

Click on the word TOOLS across the top. Then your slide your mouse down and click on the word ACCOUNTS

A new window will appear, click the ADD button on the left.

Another window will appear
Click LET ME CONFIGURE SETINGS MYSELF
Click Next

Type a friendly name in the YOUR NAME name field,
Type your E-MAIL ADDRESS in the YOUR E-MAIL ADDRESS field,
click NEXT.

IncrediMail will AUTOMATICALLY find the correct mail servers

Verify MAIL.ITLNET.NET in both SERVER NAMES,
click NEXT.

In the USERNAME name field type your username (without @itlnet.net),
In the PASSWORD field type your password

FINISHED - Click FINISH, then click CLOSE.