an Entity references as follows:
A text-based email client is an email client with its user interface being text-based, occupying a whole terminal screen. Other kind of email clients are GUI-based (cf. email client) or Web-based, see Webmail. Typical features include: * Editing various emails via tab support * Configurable rendering of various MIME types, for instance OpenPGP encryption or HTML email * Vim-style keybindings * Support for multiple accounts and protocols, e. g. IMAP, Maildir, SMTP, and sendmail * UTF-8 support