Mailgun
Work on Mailgun? Verify this listing (free)Email API and SMTP relay for developers (Sinch)
Mailgun is a developer email API and SMTP relay with tracking, webhooks, inbound routes and email validation. The free plan sends 100 emails a day with 1 custom domain and 1-day log retention; Basic starts at $15/mo for 10,000 emails, Foundation at $35/mo for 50,000 (with 1,000 sending domains) and Scale at $90/mo for 100,000 with dedicated IP pools.
Best for: Developers who want a mature transactional API with inbound routing and many sending domains
Visit Mailgun ↗- Pricing
- Free $0 (100 emails/day); Basic from $15/mo (10,000 emails); Foundation $35/mo (50,000); Scale $90/mo (100,000); extra from $1.80 per 1,000 on Basic
- Free tier
- Yes: 100 emails/day, 1 custom sending domain, 1-day log retention
- Open source
- No
- Last verified
- 2026-10-25
Mailgun pricing breakdown, history and cheaper alternatives →
Sources (checked 2026-10-25): mailgun.com/pricing
Score breakdown
- Fit for the use case20 / 25
- Vibe-coder friendliness9 / 15
- Output quality & reliability13 / 15
- Pricing & free tier10 / 15
- Ecosystem & integrations8 / 10
- Momentum5 / 10
- Code ownership & lock-in5 / 10
Why this score: Mature, reliable API with inbound routes and solid multi-domain plans. Short log retention on the low tiers and a less modern DX than Resend keep it mid-pack for vibe coders.
Based on desk research of official pricing pages and docs; see methodology.
FAQ
- Is Mailgun free?
- Mailgun free tier: Yes: 100 emails/day, 1 custom sending domain, 1-day log retention. Paid pricing: Free $0 (100 emails/day); Basic from $15/mo (10,000 emails); Foundation $35/mo (50,000); Scale $90/mo (100,000); extra from $1.80 per 1,000 on Basic.
- What is Mailgun pricing in 2026?
- Mailgun pricing (as of our last verification on 2026-10-25): Free $0 (100 emails/day); Basic from $15/mo (10,000 emails); Foundation $35/mo (50,000); Scale $90/mo (100,000); extra from $1.80 per 1,000 on Basic. Always confirm on the official site — plans change.
- Is Mailgun open source?
- No. Mailgun is not open source.
- What is Mailgun's PromptToProd score?
- Mailgun scores 70/100 on PromptToProd (fit, vibe-coder friendliness, quality, pricing, ecosystem, momentum, ownership). See the score breakdown on this page and our methodology.
- What is Mailgun best for?
- Mailgun is best for: Developers who want a mature transactional API with inbound routing and many sending domains.
- When was Mailgun last verified on PromptToProd?
- Pricing and details for Mailgun were last verified on 2026-10-25 from official docs and pricing pages.
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