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/etc/rundeck/profile change
-Drundeck.config.location=/etc/rundeck/rundeck-config.properties \
to
-Drundeck.config.location=/etc/rundeck/rundeck-config.groovy \

and my /etc/rundeck/rundeck-config.groovy
looks like:

grails.serverURL="https://172.20.22.76:4443"

loglevel.default = "DEBUG"
rdeck.base = "/var/lib/rundeck"
rss.enabled = false

dataSource {
  dbCreate="update"
  url="jdbc:h2:file:/var/lib/rundeck/data/rundeckdb;MVCC=true"
}

grails.mail.default.from="deployer@domain.com"

grails {
  mail {
    host = "smtp.gmail.com"
    username = "my_gmail_logic@gmail.com"
    port = 587
    password = "mygmailpass"
    props = ["mail.smtp.starttls.enable":"true", "mail.smtp.port":587, "mail.smtp.auth":"true"]
  }
}

profit!!!

notes:
1) after first job run it is needed to grand access in gmail, you will receive email, just follow instructions
2)grails.mail.default.from - does not work, still receive mails from: my_gmail_logic@gmail.com, but not from deployer@domain.com

Regards!