Mailgun is one of the long-running developer email services. Now part of Sinch, it offers a familiar REST API, per-domain configuration, and an enterprise-friendly feature set covering email validation, batch sending, and template management. For teams already invested in the Sinch product family or running Mailgun at high volume, the platform remains a defensible choice.
But the Mailgun pricing posture is showing its age in 2026.
Where Mailgun fits well
Mailgun is the right default when:
- Your team is already using Sinch products (SMS, voice, video) and wants operational adjacency
- You need enterprise SLAs with named support and account management
- You're sending consistent volume above 50K/month where Foundation plan economics work
- You value Mailgun Optimize add-ons for inbox placement testing as a separate product
Where Bavimail fits better
The decision flips when:
- You're under 5K/month and don't want a $15 monthly floor or a 100-emails-per-day cap on the free tier
- You want email validation bundled instead of paid separately at $1.20 per 100
- You need inbound email, webhooks, and domain operations on every paid plan without per-feature upgrades
- You want email validation bundled rather than billed separately
- You care about inbox placement on shared IPs (multiple 2025-2026 third-party deliverability benchmark roundups have placed Mailgun's shared-IP inbox placement below the developer-transactional cohort average; specific percentages vary by methodology)
Pricing across canonical tiers
| Volume | Bavimail | Mailgun | Savings | |---|---|---|---| | 5,000/mo | Free | Basic $15 | $15/mo | | 10,000/mo | Pro $4 | Basic $15 | $11/mo | | 50,000/mo | Growth $20 | Foundation $35 | $15/mo |
Mailgun's free tier caps at 100 emails/day with no monthly limit, which works out to roughly 3,100 emails per month. Bavimail's free tier is 5,000 emails per month with a 200/day cap, covering about 60% more monthly volume.
See the full Bavimail vs Mailgun pricing comparison for a tier-by-tier breakdown with feature coverage including the email validation cost difference.
Which to choose
Choose Mailgun if: you need Sinch enterprise SLAs, multi-product Sinch integration, or your team has existing per-domain Mailgun configuration that would be costly to migrate.
Choose Bavimail if: you want email validation bundled into sending, a higher monthly free allotment for early-stage products, and operational depth at a starting price of $0.
Migration is straightforward: both are REST APIs with similar resource models. Replace the base URL and API key, adjust the JSON shape, and configure your domain. The Bavimail inbound docs cover the parsed-content webhook format if you're moving away from Mailgun Routes, and the webhook event reference covers HMAC signature verification.
Comparing Mailgun directly against AgentMail? See AgentMail vs Mailgun (2026) for the head-to-head with current pricing, MCP coverage, and webhook semantics. If you're weighing the broader transactional landscape, the per-vendor compare pages include line-by-line pricing and API differences: Bavimail vs Postmark, Bavimail vs Amazon SES. The best email APIs for developers in 2026 roundup ranks 8 providers including both Mailgun and Bavimail on SDK breadth, MCP, and DX.
If you're building for specific use cases: Bavimail for developers details the SDK and REST API. Bavimail for AI agents covers per-agent inbox patterns. Bavimail inbound email covers parsing and webhook routing. Bavimail pricing shows the full plan comparison.