MTA CentOs 7.2 VPS Start at boot

[Rob0]

Have got MTA running fine on my CentOs7 VPS. I would like to know how to best auto start MTA for 24/7 operation on all occasions of server startup/reboot/crash? And should/could it be started as a user? And I would like it start in a screen that is minimized but re-attachable.

[Mr_Moose]

For that you could use a cronjob:

cron -e

Then enter something like this:

@reboot screen -S NAME_OF_SCREEN_SESSION -dm /path/to/mta-server && screen -S NAME_OF_SCREEN_SESSION -X quit

On the last line, that will launch your server in a screen session and detach as soon your physical server is started or rebooted. If you wish to reboot after a crash you need to find some kind of event for that or use polling in a cron to see if the server is still running.