The Reply/Reply All buttons are missing in tickets in Zammad, even though the channel is set to Email and email configuration is working. I only see options for Internal Note and Call. while my rode is admin.
It doesn’t matter if you’re admin or not. What matter is, if the group as a email address configured or not. See: Group Settings — Zammad Admin Documentation documentation
Beside that, the ticket article has to be of type communication (thus a phone or email article).