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Email Infrastructure

Mailgun

Transactional and marketing email API.

Free plan
Mailgun website: Transactional and marketing email API.
Image from Mailgun
Category
Email Infrastructure
Use case
Email infrastructure
Team fit
Developers–Enterprise

What it is used for

Email infrastructure

Transactional and marketing email API

Who it is for

Built for Developers–Enterprise teams.

Deliverability controls

Review authentication, suppression, bounce handling, monitoring, and the support available during delivery issues.

Technical fit

Check API, SMTP, event, template, and integration requirements against your application or sales stack.

When it fits

Use it when

  • You send from your own domains and need authentication.
  • Someone owns bounces, suppression, and reputation.
  • The product workflow needs events, not only a mailbox.

Skip it when

  • You can stay on a simple mailbox provider.
  • No one will watch deliverability after go-live.

How to start

  1. Separate marketing from sales mail

    Don’t blast from the domain you use for 1:1 outreach.

  2. Authenticate everything

    SPF, DKIM, DMARC before volume.

  3. Watch bounces daily

    Infrastructure problems show up as reputation, not as a pretty dashboard.

Pricing

Free plan

Free planper month

  • Pay as you go after free emails.
  • Foundation from about $15–$35 per month.

Confirm current plans on Mailgun before you buy. Prices checked 30 Sep 2026.

Sending volume without authentication, consent, and bounce handling can damage the domain. Confirm those controls before you scale.

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