Install gnarwl by entering the following commands in the terminal:
sudo apt update sudo apt install gnarwl
Description:
Email autoresponder based on LDAP
Gnarwl is an email autoresponder. Unlike the original vacation program, gnarwl is based on LDAP, so that there's no need for users to have unix accounts on the mail server.
Homepage: http://www.onyxbits.de/gnarwl
Version: 3.6.dfsg-11build1
Section: universe/mail