Automation - Log E-Mail Template

Hi everyone. I just started to use automation for alert mails since I can choose more detailed options to trigger the mails. But the mails are formatted in a bad way. Does anyone know where I can change the mail-template? I would like to include the system name.. so far it only shows the FG serial number. Also the senders e-mail differs. One FG sends with "noreply@XXX.XXX.XXX.XXX" the next one as the configured e-mail address under settings->smtp settings.