[Feature]: Add “nullmailer” als allowed MTA for email notification #4872
Description
User story
Allow “nullmailer” as MTA and do not display an error message.
Game
No response
Linux distro
Debian 12, Debian 11, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 24.04
Command
command: start
Further information
nullmailer is nice because it is a minimal MTA, just to send email out — and not more than this is needed by LinuxGSM.
I am using nullmailer with LinuxGSM already for some years now and it works fine.
However you get the error:
Missing dependencies: postfix Run: 'sudo apt update; sudo apt install postfix' as root to install missing dependencies.
although sendig emails by LinuxGSM works fine as the mail and mailx commands can use nullmailer as MTA.
See #4871 for a fix.