The SMTP protocol enables email delivery through clients and relays. Development tools like smtpd and Docker integrations simplify testing, while webhooks extend SMTP functionality for automated ...

Timeline: 12–18 months (assuming you already know Go basics) 📅 MONTH 1–2: Foundation Hardening ├── Go Internals Deep Dive │ ├── Goroutine scheduler (GMP model) │ ├── Memory model (escape analysis, GC ...