Install xbuffy by entering the following commands in the terminal:
sudo apt update sudo apt install xbuffy
Description:
monitor mailboxes and/or newsgroups
Xbuffy is a program that displays how many unread mails you have in your different mailboxes. You can have different titles for the mailboxes, and define what shall happen when a new mail arrives. It can beep and invoke a shell command, for example. . If you press mouse button 1 on the title associated with a mail box, a list of From: and Subject: lines of the mails in the mail spool file is shown. If you press mouse button 2, an arbitrary command is executed. . Xbuffy can similarly watch newsgroups via NNTP.
Homepage: http://www.fiction.net/blong/programs/#xbuffy
Version: 3.3.bl.3.dfsg-10build1
Section: universe/mail