Always cognizant registration mailer

It sounds like you're referring to a registration mailer that is always cognizant, meaning it's always aware of its surroundings and is able to register or track information accurately.

Can you please provide more context or clarify what you mean by "always cognizant registration mailer"? Are you referring to a specific type of software, a tool, or a process? Additionally, what kind of information do you want to register or track with this mailer?