good day, comrades!
i’d like to know is it possible to add custom headers to email notifications which are alerting CRITICAL or WARNING type of problems?
i need to add “X-Priority 1” header to every notification letter. I know i can make it by passing an option -a “X-Priority 1” to /bin/mail command, but it’ll mark all notifications when i need only CRITICAL and WARNING messages to be marked.
thanks in advance.