| CPC H04L 51/58 (2022.05) [H04L 63/0428 (2013.01); H04L 63/08 (2013.01); H04L 63/18 (2013.01); H04W 12/02 (2013.01); H04W 12/033 (2021.01); H04W 12/06 (2013.01); H04W 4/12 (2013.01); H04W 8/26 (2013.01)] | 16 Claims |

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1. A method for forwarding an e-mail message from an e-mail server to a mobile terminal, the method comprising:
at a messaging center acting as an intermediary between the e-mail server and the mobile terminal:
receiving the e-mail message from the e-mail server, wherein the e-mail message is unencrypted;
encrypting the e-mail message using encryption information;
transmitting the encrypted e-mail message to the mobile terminal;
receiving a reply message from the mobile terminal,
wherein the reply message is encrypted;
wherein the reply message indicates that the user has read the e-mail message;
retrieving the encryption information based on information not included in the reply message;
decrypting the reply message using the encryption information;
modifying the reply message; and
transmitting the modified reply message to the e-mail server,
wherein the modified reply message signals the e-mail server to mark the e-mail message as read.
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