Contacts Verifier 

Contacts Verifier is the Microsoft Outlook add-in designed to monitor the validity of email addresses. It is able to check your contacts throughout in a few minutes and notify you of contacts that contain invalid email addresses.
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Save Mailing List 

Microsoft Outlook 2000, 2002/XP and 2003 add-in, designed to export contacts and user groups from your address book into a mailing list file. The output file format is common to many programs working with mailing lists.
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