Mailgun vs Plunk
A detailed comparison to help you choose between Mailgun and Plunk.
Quick Verdict
3.7/5
Mailgun
0 reviews
3.7/5
Plunk
0 reviews
Both Mailgun and Plunk are equally rated at 3.7/5. Mailgun is a developer-focused email API service owned by Sinch. Inbound email parsing, email validation API, and detailed analytics. Popular for startups building email features into their apps. Open-source (AGPL-3.0) email platform for transactional emails, newsletters and automations. Free for 1,000 emails/month, then $0.001 per email; self-hostable via Docker. EU-hosted, SMTP + REST API, unlimited contacts.
Mailgun Email API for developers — by Sinch | Plunk Transactional email infrastructure built for developers | |
|---|---|---|
| Overview | ||
| Rating | 3.7 (0 reviews) | 3.7 (0 reviews) |
| Pricing model | freemium | freemium: free 1,000 emails/month, then $0.001 per email pay-as-you-go |
| Starting price | Free tier available | Free tier available |
| Best for | Developers and SaaS teams sending transactional email from applications who also need inbound email parsing, validation, and deliverability tooling | Indie hackers and SaaS teams wanting one affordable, self-hostable system for transactional email, newsletters and triggered flows — especially EU-based ones |
| Features | ||
| IPv6 | ||
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Tags | ||
| Tags | free tierapi access | free tieropen sourceself hostableapi access |
| Visit Mailgun → | Visit Plunk → | |
Mailgun
Pros
- + Inbound email parsing on every plan, including Free — the strongest developer-side feature in this category
- + Published four-tier pricing with explicit overage rates ($15/$35/$90 per month tiers)
- + Credit-backed 99.99% availability SLA on API, SMTP, and outbound delivery
- + US or EU (Ireland) sending regions per account, with GDPR/HIPAA/SOC/ISO 27001 compliance paperwork
Cons
- - One day of log retention on Free and Basic — debugging old delivery issues is impossible without exporting logs
- - Chat and phone support only on the $90/month Scale tier; support quality under Sinch ownership draws community criticism
- - Dedicated IPs cost extra below high volumes (third-party listings quote ~$59/IP/month)
- - US operating entity under a Swedish parent — CLOUD Act exposure remains for privacy-sensitive EU buyers
Plunk
Pros
- + Dead-simple pricing: free at 1,000 emails/month, then $0.001/email with no base fee and per-category spend caps
- + AGPL-3.0 open source with free self-hosting via Docker — full data ownership and an exit path
- + Transactional, campaigns, workflows and inbound email in one product with unlimited contacts on every plan
- + EU-hosted and GDPR-focused, with DKIM/SPF/DMARC configured automatically on custom domains
- + SMTP relay plus a language-agnostic REST API; email validation and real-time analytics built in
Cons
- - No published uptime SLA or deliverability guarantees; sending IP reputation unproven at scale
- - Small team and young product (2022) versus incumbents with a decade of sending history
- - Hosted platform is EU-only; no dedicated IP or managed IP warm-up offering (the DB's IP warming claim is wrong)
- - AGPL-3.0 copyleft matters if you embed the software in a commercial product
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