Mayday Gearbox Repair uses EmailJS to send automated emails directly from the browser — no server needed. Free tier allows 200 emails/month.

Setup steps:
1. Create a free account at emailjs.com
2. Add an Email Service (Gmail, Outlook, etc.) → copy the Service ID
3. Create an Email Template using the variables below → copy the Template ID
4. Go to Account → API Keys → copy your Public Key

Available template variables:
{{to_name}} — Customer name
{{to_email}} — Customer email
{{job_id}} — Work order number
{{job_desc}} — Gearbox description
{{stage_name}} — Current repair stage
{{stage_number}} — Stage number (e.g. 3)
{{total_stages}} — Total stages (8)
{{progress}} — Task completion %
{{eta}} — Estimated completion date
{{failure}} — Reason for repair
{{stage_message}} — Auto-generated stage description
{{shop_note}} — Latest customer-visible shop note