Modify Email Action to include an specific SMTP relay server (other than config?

[AlvaroVega]

https://github.com/telefonicaid/perseo-fe/blob/master/docs/API/plain_rules.md#email-action Current email action:

"action": {
        "type": "email",
        "template": "Meter ${Meter} has pressure ${Pressure} (GEN RULE)",
        "parameters": {
            "to": "someone@acme.com",
            "from": "cep@acme.com",
            "subject": "It's The End Of The World As We Know It (And I Feel Fine)",
            "smtp": {
               "port": 25,
               "host": "smtpserver",
               "secure": false,
               "auth": {
                  "user": "abc",
                  "pass": "xyz"
               },
               "tls": {
                  "rejectUnauthorized": false
               }
            }
        }
    }

[fgalan]

After checking this with @mrutid we agree is currently correctly covered by documentation, so this issue is going to be closed.