Sup is a console-based email client for people with a lot of email.

Sup is a console-based email client for people with a lot of email. It presents an interface of a list of threads, which are each hierarchical collections email messages. Threads can have multiple tags applied to them. It supports a very fast full-text search, automatic contact-list management, custom code insertion via a Ruby hook system, and more. If you’re the type of person who treats email as an extension of your long-term memory, Sup is for you.