self host via docker:Email Problem

[czyt]

Problem Description

When deploying Fizzy in production with SMTP email delivery, the application fails to send emails with two critical errors:

1. Missing SMTP delivery method configuration - Rails defaults to connecting to localhost:25, causing:

   Errno::ECONNREFUSED (Connection refused - connect(2) for "localhost" port 25)
   

2. Hardcoded "from" address mismatch - The ApplicationMailer uses a hardcoded from address ([email protected]) that doesn't match the authenticated SMTP user, causing:

   Net::SMTPFatalError (553 Mail from must equal authorized user)
   

Environment

• Rails: 8.2.0.alpha
• Deployment: Production (Docker container)
• SMTP Provider: Various (Gmail, SendGrid, etc.)

Steps to Reproduce

1. Deploy Fizzy in production with SMTP credentials configured via environment variables:

   • SMTP_ADDRESS
   • SMTP_PORT
   • SMTP_USERNAME
   • SMTP_PASSWORD
   • SMTP_AUTHENTICATION
   • SMTP_ENABLE_STARTTLS_AUTO

2. Trigger any email action (e.g., magic link authentication, notifications)