wl-beta 2.15.9+0.20200822-1 (amd64 binary) in ubuntu groovy

 Wanderlust is a mail/news management system on emacsen. It supports
 IMAP4rev1 (RFC2060), NNTP, POP and local message files.
 .
 The main features of Wanderlust:
 .
  - Pure elisp implementation.
  - Supports IMAP4rev1, NNTP, POP (POP3/APOP), MH and Maildir format.
  - Unified access method to messages based on Mew-like Folder Specification.
  - Mew-like Key-bind and mark handling.
  - Manages unread messages.
  - Interactive thread display.
  - Folder Mode shows the list of subscribed folders.
  - Message Cache, Disconnected Operation.
  - MH-like FCC. (Fcc: %Backup and Fcc: $Backup is allowed).
  - MIME compliant (by SEMI).
  - Transmission of news and mail are unified by Message transmitting draft.
  - Graphical list of folders.
  - View a part of message without retrieving the whole message (IMAP4).
  - Server-side message look up (IMAP4). Multi-byte characters are allowed.
  - Virtual Folders.
  - Supports compressed folder using common archiving utilities.
  - Old articles in folders are automatically removed/archived (Expiration).
  - Automatic re-file.
  - Template function makes it convenient to send fixed form messages.
 .
 This package provides a development snapshot version of Wanderlust.