Mikrotik using Netwatch to check host availability (ONLINE, OFFLINE) and send email then host up or down

Mikrotik routers have default service to check host availability, its name Netwatch. Configuration Netwatch service to send emails through default Mikrotik email client if host is offline or returned online.

Video

Winbox is connected,
Going to the section Tools -> Netwatch

Adding new Netwatch host

Enter IP address of host
Interval - how frequently will be checked host
Timeout - max time of without activity to trigger. 

Script to send Email then host is UP (ONLINE)

Script for UP

local host YourServerName
local status ONLINE
local mailTo simplelbase@gmail.com
local mailFrom simplelbase@gmail.com
/tool e-mail send from=$mailFrom  to=$mailTo body="$host $status" subject="$host $status"

Script to send Email when host is DOWN (OFFLINE)

Script for DOWN

local host YourServerName
local status OFFLINE
local mailTo simplelbase@gmail.com
local mailFrom simplelbase@gmail.com
/tool e-mail send from=$mailFrom  to=$mailTo body="$host $status" subject="$host $status"

Checking in Log file that email sent when host is OFFLINE.