| CPC H04L 51/58 (2022.05) [H04L 51/212 (2022.05); H04L 51/42 (2022.05); H04W 4/12 (2013.01)] | 15 Claims |

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1. A system comprising:
a system server, programmed to: receive a mobile number of a mobile device; associate the mobile number with a mailbox; and provide, in exchange for the mobile number and only the mobile number, a mailbox address for the mailbox;
a mailbox server, programmed to: provide the mailbox; and receive a set of electronic messages addressed to the mailbox address; and
a secure channel to communicate with an application on the mobile device, wherein the secure channel is secured using a message sent to the mobile number;
wherein the system server is further programmed to: extract content from the set of electronic messages to obtain extracted content; and transmit the extracted content to the application via the secure channel;
an extracted content database, wherein the system server stores the extracted content in the extracted content database;
wherein the extracted content database permits the application to accesses a portion of the extracted content;
wherein the portion of the extracted content is associated with the mobile number;
a classifier on the system server that classifies the electronic messages in the set of electronic messages into a set of classes; and
wherein an attribute of the extracted content in the extracted content database identifies a class in the set of classes.
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