Yahoo! Inc.

Visto Corporation

Good Technology, Inc.

Jing Zhu

George Hu

Hao Zheng

Sean Michael Quinlan

Daniel J Mendez

Mark D Riggins

Mason Ng

Anirban Kundu

David Hikaru Nakayama

Miles Libbey

Steven Kenichi Yoshimoto

Miles A Libbey

Matt Williams

Tom Ruan

Martin Cheng, Jr

Bruce Hui-der Chu

Len Fenkel

Matt O Williams

The invention is directed to a system and method for determining if a 'spam' message is originating from a messaging account by challenging a particular client's outbound email usage with a test that requires verification of content that is easily understood by a human being, not an automated computer program such as those used by 'spammers.' If a limit on the number of recipients for outbound messages has been exceeded, a test is presented the next time a client attempts to send a message. The client must successfully answer the test within a relatively short period of time or else the ability to send messages will be disabled. Once disabled, the client can reinstate the ability to send messages by contacting a representative of the message system out of band, e.g., a telephone call to confirm legitimate outbound email use.

Method and system for image verification to prevent messaging abuse

The invention relates to determining electronic text communication distributed in bulk is likely solicited. In one step, a first electronic and a second electronic submission are received. It is determined that the first electronic submission is likely solicited. A first portion is extracted from the first electronic submission and a second portion from the second electronic submission. The content of the first electronic submission influences extraction of the first portion, and the content of the second electronic submission influences extraction of the second portion. A first code is determined for the first portion and a second code is determined for the second portion, where the first code is indicative of the first portion and the second code is indicative of the second portion. The first code is compared to the second code. It is determined that the second electronic submission is likely solicited, at least in part, in response to comparing the first code to the second code.

Automated solicited message detection

A community-based 'green list' (CGL) message filter for mail service providers. The CGL filtering enables trusted messages to be delivered directly into a user's inbox folder and other messages to be delivered to other folders associated with the user. The CGL filtering indicates which messages are sent from those message addresses listed as friends in the user's personal address book. Also, the scope of CGL filtering includes more than those message addresses that the user interacts with directly (one degree of separation). For example, the CGL filtering also evaluates message addresses that are connected more remotely to the user through other nodes (users) in the online community that are located multiple degrees of separation away from the user.

Community-based green list for antispam

The invention is directed to implementing a trust rating subscription model for email addresses and/or domains in a trust-oriented email network that is supported by a deployment of a trusted email database (TED) system. The TED maintains the trust rating for individual email addresses relative to the recipients. Also, the subscription model enables the email end users and inbox service providers to register with the TED to obtain the trust rating of a specific email sender relative to the recipient. This trust rating may then be used by the email end user or an inbox service provider to filter spam, if the sender is untrusted, or deliver the message to an inbox, if the sender is trusted. A sender (individual email address, domain, and the like) can also subscribe and obtain limited rights to email subscribers of the TED system.

System and method for a subscription model trusted email database for use in antispam

A Trust Email Datastore (TED) system is employed to maintain a list of message addresses with associated trust ratings. The trust rating of a message address is derived from an underlying message address relationship network around the message address of interest through various network related activities such as message sending, forwarding, deleting, blocking, marking as is/is not spam, saving to address book, etc. There may be at least two components of the trust rating between two message addresses. One component of the trust rating, called a relationship trust, may be determined based on proximity of two message addresses in a message address relationship graph. Another component of the trust rating is substantially independent of the positions of two message addresses in the message address relationship graph, and is referred to as a universal trust rating. The trust rating components can be combined and employed for spam filtering.

System and method for managing a trusted email datastore

A system updates a remote (server) database in a network. The network comprises a global server coupled to a local client and to a remote client. The local client includes a browser for establishing a communications link with a web server on the global server. The global server has server database memory for storing independently modifiable copies of workspace data maintained by personal information managers (PIMS) or other data stores on the local client and has PIM Downloadables for interfacing with these PIMs. The local client requests synchronization capability for a particular PIM. The global server sends a PIM Downloadable corresponding to the particular PIM to the local client, which installs and initiates execution of the PIM Downloadable. Accordingly, a user interface receives information designating a database containing the workspace data to be synchronized and information selecting a synchronization mode such as one-way replace, one-way merge or two-way synchronize. A PIM interface instructs the particular PIM to retrieve the workspace data to be synchronized. A synchronization module determines update data based on the synchronization mode selected and possibly based on a comparison with the contents of the server database. A communications engine delivers the first update data to the global server, which updates the server database accordingly.

System and method for updating a remote database in a network

Growing community of inventors

Fremont, CA, United States of America

Jing Zhu