Mailgun email service with Mustache templates
| method | route | success | failure | comment | validated | 
|---|---|---|---|---|---|
| GET | /ready | 200 'ok' | - | kubernetes ready probe | - | 
| GET | /unsubscribe/:email | -> /unsubscribed | -> /unsubscribed | remove email from all lists | yes | 
| GET | /subscribe/:email | 200 'Subscribed!' | 400 'missing email' | add email to subscribed list | yes | 
| GET | /onboard/:email/:name | 200 'okay' | 400 'missing email' | send onboard to :email + subscribe to lists | no | 
PROGRAM_ALIAS=mailgun
PORT=3000
LOG_FILE=false
LOG_LEVEL=debug
MAILGUN_API_KEY=
MAILGUN_DOMAIN=