Mailgun vs Brevo for transactional delivery

If your main goal is reliable transactional email delivery (password resets, receipts, alerts, OTPs, system notifications), the choice usually comes down to:

• Mailgun: better if you want a more developer-centric, mature transactional email platform
• Brevo: better if you want a broader marketing + transactional suite with simpler pricing and an all-in-one CRM-ish stack

Quick recommendation

• Pick Mailgun if you care most about:

  • strong API-first transactional sending
  • deliverability tooling and logs
  • suppression management, routing, inbound parsing, webhooks
  • scaling email infrastructure for product/app use cases

• Pick Brevo if you care most about:

  • lower-cost transactional email at smaller to mid scale
  • combining transactional + marketing email in one account
  • easier non-technical UI and broader business features

Transactional delivery comparison

1) Deliverability

Both can deliver well if configured correctly, but:

• Mailgun tends to be preferred by engineering teams for transactional traffic and has a strong reputation here.
• Brevo is solid, but it’s often viewed more as a broad communications platform than a pure transactional specialist.

What matters more than the vendor:

• dedicated sending domain
• SPF, DKIM, DMARC
• clean lists and low complaint rates
• proper bounce/complaint handling
• separate transactional vs marketing streams

2) API and developer experience

• Mailgun
  • generally stronger for devs
  • good REST API, webhooks, logs, templates, inbound routing
  • nice fit for app infrastructure
• Brevo
  • API is fine and functional
  • UI is approachable
  • better if your team wants marketing tools too

3) Features

• Mailgun
  • transactional-first features
  • inbound email processing
  • advanced logs and event tracking
  • templates and routing
• Brevo
  • transactional email plus marketing automation, SMS, CRM-like tools
  • useful if you want fewer vendors

4) Pricing

This changes often, but in general:

• Brevo is often more budget-friendly, especially for modest volumes
• Mailgun can be more expensive, but may be worth it for operational maturity and developer tooling

5) Scale and reliability

• Both are used at scale.
• For high-volume product email, the key is:
  • dedicated IP/domain setup if needed
  • monitoring bounces, complaints, and latency
  • segmentation of email streams
• Mailgun is often the more common choice in engineering-heavy stacks.

Practical guidance

Choose Mailgun if:

• you’re sending app notifications, auth emails, and system messages
• you need strong logs/webhooks and operational visibility
• your team is technical and wants a clean API

Choose Brevo if:

• you want transactional + marketing in one place
• cost is a major factor
• you want a friendlier UI and broader business features

My default suggestion

For pure transactional delivery, I’d usually lean Mailgun.

For best value and an all-in-one platform, I’d lean Brevo.

If you want, I can also give you:

1. a feature-by-feature table,
2. a pricing/volume comparison, or
3. a recommendation based on your exact use case.