How to block <unknown sender> mail in Outlook inbox?

  • Thread starter Thread starter Guest
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Guest

How can I block <unknown sender> mail in MS Outlook 2003 inbox? By "unknown
sender" it is meant mail whose sender line is in blank as well as its subject
line. The junk e-mail feature is of no help in this case as it requires a
sender id or a subject line. Thanks.
 
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