You use GitHub Copilot because it is the original AI code assistant with the largest user base. Agent workflows, multi-model support, and deep IDE integration in VS Code and JetBrains make it the default for many developers. Now you need email infrastructure that fits your existing development workflow.

GitHub Copilot users write production code. The integration with GitHub, GitHub Actions, and the broader ecosystem means your email platform should work within that world. Git-triggered emails, CI/CD integration, and API-first approaches make sense.

This guide covers 11 email marketing tools that work well for GitHub Copilot projects. I prioritized platforms with clean APIs and GitHub ecosystem compatibility. If you are using a different AI code assistant, check out our guides for Claude Code, Cursor, or Windsurf.

Quick Comparison

Tool	Best For	Price at 10k Subs	API Quality	GitHub Fit
Sequenzy	SaaS automation	$49/mo	Excellent	Excellent
Resend	GitHub Actions	$20/mo (volume)	Excellent	Excellent
SendGrid	Enterprise	$20-$90/mo	Good	Good
Postmark	Deliverability	$15/mo (volume)	Excellent	Good
Customer.io	Behavioral	$100+/mo	Good	Good
Mailgun	Developer	$35/mo	Great	Good
Loops	Modern SaaS	$79/mo	Great	Good
Plunk	Open-source	Free-$10/mo	Good	Excellent
Brevo	Budget	Free-$25/mo	Good	Good
ActiveCampaign	CRM	$29+/mo	Good	Fair
AWS SES	Cost	~$1/10k emails	Basic	Good

1. Sequenzy

Price: Free (100 subscribers) / $49/mo at 10,000 subscribers. Transactional emails included at no extra cost.

GitHub Copilot users write production code in VS Code and JetBrains. Sequenzy integrates with your existing Git workflow. Connect GitHub to auto-generate changelog emails from commits and releases. The API fits naturally into CI/CD pipelines.

Built for production SaaS, not side projects. Advanced sequences with behavioral triggers automate onboarding, trial-to-paid conversion, and churn prevention. AI generates complete email flows from descriptions, matching Copilot's AI-assisted workflow.

At $49/mo for 10k subscribers, it is 67% cheaper than ActiveCampaign and 55% cheaper than Mailchimp. Revenue attribution tracks which sequences actually drive MRR.

Stripe OAuth syncs customer data for segments like "Pro users" or "churned last month." Unified transactional + marketing.

Where it falls short: No native GitHub Action (yet). API calls work in workflows.

Best for: Developers building production SaaS who want automation without enterprise complexity.

2. Resend

Price: Free (3,000 emails/month) / $20/mo for 50,000 emails

Resend works great in GitHub Actions. Send transactional emails from CI/CD. Clean API, React Email for templates.

Where it falls short: No marketing automation.

Best for: Transactional in CI/CD workflows.

3. SendGrid

Price: Free (100 emails/day) / $20-$90/mo at scale

SendGrid is enterprise standard. Works in any environment.

Where it falls short: Marketing features basic.

Best for: Enterprise scale.

4. Postmark

Price: From $15/mo for 10,000 emails

Postmark focuses on deliverability. Reliable transactional.

Where it falls short: Marketing minimal.

Best for: Critical transactional.

5. Customer.io

Price: From $100/mo for up to 5,000 profiles

Customer.io offers sophisticated behavioral automation.

Where it falls short: Expensive.

Best for: Complex flows.

6. Mailgun

Price: From $35/mo

Mailgun provides developer infrastructure.

Where it falls short: Marketing basic.

Best for: Developer control.

7. Loops

Price: Free (1,000 contacts) / $79/mo at 10,000 subscribers

Loops is modern SaaS email.

Where it falls short: Costs more than Sequenzy.

Best for: Modern approach.

8. Plunk

Price: Free (3,000 emails/month) / ~$10/mo for more

Plunk is open-source. GitHub-native values.

Where it falls short: Fewer features.

Best for: Open-source alignment.

9. Brevo

Price: Free (300 emails/day) / $25/mo at 20,000 emails

Brevo offers budget pricing.

Where it falls short: Mixed deliverability.

Best for: Budget priority.

10. ActiveCampaign

Price: From $29/mo for 1,000 contacts

ActiveCampaign combines email with CRM.

Where it falls short: Not developer-focused.

Best for: CRM needs.

11. AWS SES

Price: $0.10 per 1,000 emails

AWS SES is cheapest.

Where it falls short: No features.

Best for: Cost optimization.

Integration Patterns for GitHub Copilot Projects

GitHub Actions

Trigger emails from CI/CD. New release? Send changelog email.

# .github/workflows/release-email.yml
name: Send Release Email
on:
  release:
    types: [published]

jobs:
  notify:
    runs-on: ubuntu-latest
    steps:
      - name: Send email
        run: |
          curl -X POST https://api.sequenzy.com/v1/campaigns/trigger \
            -H "Authorization: Bearer ${{ secrets.SEQUENZY_API_KEY }}" \
            -H "Content-Type: application/json" \
            -d '{"campaign": "release-notes", "data": {"version": "${{ github.event.release.tag_name }}"}}'

Webhook integration

GitHub webhooks trigger email actions on push, PR, issues.

Copilot-assisted integration

Copilot can help you write email API integrations. Describe what you need, get working code.

The Bottom Line

For GitHub Copilot projects, Sequenzy offers powerful automation with GitHub workflow compatibility. For CI/CD transactional, Resend. For open-source values, Plunk.

See our SaaS email marketing guide for more context.

Check our guides for Claude Code, Cursor, or Replit.