Multiple mail forwarding to single

Abstract—Abstract Email forwarding generically refers to the operation of re-sending an email message delivered to one email address on to a possibly different email address. The term forwarding has no specific technical meaning. Users and administrators of email systems use the same term when speaking of both server-based and client-based forwarding. The mail forwarding service offered by postal authorities should be distinguished from private mail forwarding services. Private mail forwarding services tend to offer additional services and needs that might not be provided by governmental services, such as mail scanning services, online mailbox management and a selection of domestic and international delivery options. Email administrators sometimes use the term redirection as a synonym for server-based email-forwarding to different recipients. Protocol engineers sometimes use the term Mediator to refer to a forwarding server. Email forwarding can also redirect mail going to one address and send it to one or several other addresses. Vice versa, email items going to several different addresses can converge via forwarding to end up in a single address in-box. This paper considers the problem of secret communication over a multiple access mail with generalized forward. Two trusted users send independent confidential messages to an intended receiver, in the presence of a multiple mails. In this setting, an active cooperation between two trusted users is enabled in order to improve the communication efficiency. Based on rate- splitting and decode-and-forward strategies, achievable secrecy rate regions. Results show that multiple forward improves the achievable secrecy rates.