US Patent 9118632 Anonymizing emails between sender and recipient

A sender may generate a primary email including a primary header and a primary body, the primary header including a sender address associated with the sender computing system and the recipient address associated with a recipient client, encrypt at least a part of the primary body to generate a primary encrypted email, encrypt the primary encrypted email to generate an encrypted sender-to-recipient pseudo-body, add a trusted party-to-recipient header to the encrypted sender-to-recipient pseudo-body including a trusted party address of a trusted party and the recipient address associated with the recipient client to generate a trusted party-to-recipient email, encrypt the trusted party-to-recipient email to generate an encrypted trusted party-to-recipient pseudo-body, add a sender-to-trusted party header to the encrypted trusted party-to-recipient pseudo-body including the sender address and the address of the trusted party to generate a sender-to-trusted party email, and send the sender-to-trusted party email to the trusted party.