What is another word for mail system?
Pronunciation: [mˈe͡ɪl sˈɪstəm] (IPA) 
The term "mail system" can be used to describe various systems that involve the delivery of messages or packages. One synonym for this phrase could be "postal service," which refers to government-regulated systems for delivering mail and packages. Another synonym might be "courier service," which implies a more specialized or expedited delivery process. Additionally, "message transfer system" is a more generic term that could encompass electronic forms of communication, such as email or instant messaging. Finally, "package delivery system" could be an appropriate synonym for situations where the focus is primarily on moving physical goods rather than written communication.
