I would like to know if there is a way to have “HA” High Availability with email and proxy feature in NethServer and if there is any procedure to follow.
The intent is if one SMTP server stops the other I took over.
VIP IP is no problem
Active passive or Active active
I had a case of network intermittency, where my SMTP was “5 - 10” minutes without responding and came back, many emails stopped being sent