Step 1: Log into your webmail account with SquirrelMail interface.
Step 2: Click on the Addresses link at the top of the window.
Step 3: In the Add to Address Book, you will be prompted for the following details:
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Nickname
E-mail
First name
Last name
Additional info
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Step 4: Once you have entered the required information for the new contact, click on Add Address.
Step 5: The new contact will be listed in the Personal Address Book field.