I'm a solo developer. how do I avoid building email infrastructure?

If you’re a solo developer, the best way to avoid building email infrastructure is: don’t run your own SMTP servers, queue workers, bounce handling, reputation management, or deliverability tooling. Use a managed email service and keep your app’s email logic as thin as possible.

The practical approach

1. Use a transactional email provider

Pick one of these instead of building your own stack:

• Postmark
• SendGrid
• Mailgun
• Amazon SES (cheap, but more setup)
• Resend (nice developer experience)

These handle:

• SMTP/API delivery
• retries
• bounce handling
• spam complaints
• TLS
• deliverability basics

2. Send via API, not your own SMTP

Use their HTTP API from your app. That avoids:

• server relay configuration
• port 25 issues
• IP reputation management
• auth/security headaches

3. Keep email templates simple

Use provider templates or a light templating library. Don’t build a custom rendering pipeline unless you need it.

4. Outsource the hard parts

Let the provider handle:

• unsubscribe links
• suppression lists
• bounces/complaints
• dedicated IPs if needed
• monitoring and logs

5. Use webhooks for events

If you need delivery/bounce/open events, receive them from the provider via webhook. Don’t try to infer status yourself.

Suggested stack for a solo dev

Fastest to ship

• Resend or Postmark
• app sends emails through API
• provider handles deliverability
• use webhooks only if needed

Lowest cost

• Amazon SES
• optionally pair with a simple helper library
• more setup, but very cheap at scale

Best “just works” experience

• Postmark
• especially good for transactional email

What not to build

Avoid building:

• SMTP servers
• bounce processors
• complaint handling
• reputation warming
• queue/retry orchestration
• DKIM/SPF/DMARC management from scratch
• inbound email parsing unless you truly need it

Minimal architecture

Your app should only do:

1. create email content
2. call provider API
3. store send status if needed
4. react to webhook events

If you need bulk/marketing email

Don’t use the same setup as transactional email unless the provider supports it well. Marketing email has extra requirements:

• unsubscribe management
• segmentation
• compliance
• higher reputation risk

Use a marketing platform instead:

• Mailchimp
• Customer.io
• ConvertKit
• Loops
• Brevo

Rule of thumb

If your question is “should I build this?”, the answer is almost always no for email infrastructure as a solo dev.

If you want, I can recommend the best email provider for your use case based on:

• transactional vs marketing
• budget
• volume
• tech stack (Node/Python/Ruby/etc.)