It is an object to provide a processing program, a processing device, and a processing method for extracting social information that meets a predetermined extraction condition from social information posted on the Internet, and enabling handling in the same way as exchange of electronic mail.;A social information processing device 10 is configured by installing a social information processing program in a computer 20. The social information processing device 10 includes an electronic mail communication processing unit 30 that performs communication by electronic mail, a message extraction processing unit 44 that extracts social information that meets a predetermined extraction condition from social information posted on the Internet, and a display processing unit 50 capable of displaying the social information extracted by the message extraction processing in an identical user interface to the electronic mail related to the electronic mail communication processing.
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