Contain the "ip address" in email main text

Hello everyone.
I’m tryng to receive email with host.ip, timestamp and message in main text.
(I’m not sure that I could call the “host.ip, timestamp and message” as a “fields”)

This’s my structure : Cisco Catalyst Switch - Log stash - Elastic Search - Grafana (9.3.6)

I make a dashboard in grafana to figure out some work in message. (Picture_02)
and also can receive an email that text appears. (Picture_01)
But It’s so hard to contain the “host.ip, timestamp and message” in an email main text. (Picture_03)
Can you give me some tips how to do that?