Communication device having function for automaticaly determining unsolicited e-mails
First Claim
Patent Images
1. A communications device having an own-email address and transmission and reception functions for transmitting and receiving email via an external mail server, the communications device comprising:
- a history information acquiring unit operable to acquire history information of emails transmitted using the transmission function;
a received email determining unit operable to a) acquire, from the external mail server, header information of an email that has been received by the external mail server, the header information including attribute information of the received email, and b) when a transmission source email address is the own-email address determine whether or not the received email is unsolicited email by comparing the header information and the acquired history information.
2 Assignments
0 Petitions
Accused Products
Abstract
In a mobile telephone 100 having an email transmission and reception function, a control unit 106 acquires, from a history information recording unit 1082, history information of emails transmitted by the mobile telephone 100, and determines, based on the acquired history information whether a received email, which has the email address of the mobile telephone 100 as a transmission source, is in fact an email transmitted by the mobile telephone 100, thereby determining whether that email is an unsolicited email.
51 Citations
16 Claims
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1. A communications device having an own-email address and transmission and reception functions for transmitting and receiving email via an external mail server, the communications device comprising:
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a history information acquiring unit operable to acquire history information of emails transmitted using the transmission function;
a received email determining unit operable to a) acquire, from the external mail server, header information of an email that has been received by the external mail server, the header information including attribute information of the received email, and b) when a transmission source email address is the own-email address determine whether or not the received email is unsolicited email by comparing the header information and the acquired history information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16)
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9. A mail server having transmission and reception functions and serving a communications device, comprising:
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a history information recording unit operable to record history information of email transmitted by a user of the communications device; and
a received email determining unit operable to determine, based on the history information, whether or not a received email that is addressed to the communications device and has an email address of the communications device as a transmission source email address is unsolicited email.
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Specification