What is Mailgun used for?

Mailgun is an email API service for developers to send, receive and track transactional email, with deliverability and validation tools. It is a good fit for sending transactional email from a web app, cleaning an email list before a campaign, and monitoring deliverability and blocklists.

Yes. Mailgun has a free plan, and paid plans start at $15 per month. A free trial is also available.

Is Mailgun open source?

No. Mailgun is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Mailgun include Postal, Plunk and BillionMail.

What are some alternatives to Mailgun?

Mailgun competes with SendGrid, Postmark and Amazon SES. For open-source options, see Enlisted's ranked list of open-source Mailgun alternatives.

Mailgun: features, pricing and alternatives

About Mailgun

Mailgun is an email service built for developers. It provides APIs and SMTP services for sending, receiving and tracking transactional email from an application. It is now part of the Sinch Email family along with related products such as Mailjet and Email on Acid.

The offering is grouped into four areas: Send, with an email API and SMTP relay; Optimize, with tools and services to improve deliverability; Validate, which cleans email lists through an API or bulk upload; and Inspect, which previews and tests emails before campaigns go out. Other listed features are an email template builder, inbox placement testing, reputation services and blocklist monitoring.

Mailgun is a proprietary, hosted service with documentation, SDKs, a status page and a pricing page. An enterprise option targets high-volume senders, and solution pages cover martech, fintech and healthcare.

Key features

Email API for sending and receiving messages
SMTP relay service
Delivery tracking
Email address and list validation
Deliverability optimization tools
Template builder and inbox testing

Good fit for

→Sending transactional email from a web app
→Cleaning an email list before a campaign
→Monitoring deliverability and blocklists

Tags: email-api; transactional-email; smtp; deliverability; email-validation; developer-tools; saas

Mailgun: questions and answers

What is Mailgun used for?: Mailgun is an email API service for developers to send, receive and track transactional email, with deliverability and validation tools. It is a good fit for sending transactional email from a web app, cleaning an email list before a campaign, and monitoring deliverability and blocklists.
Is Mailgun free?: Yes. Mailgun has a free plan, and paid plans start at $15 per month. A free trial is also available.
Is Mailgun open source?: No. Mailgun is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Mailgun include Postal, Plunk and BillionMail.
What are some alternatives to Mailgun?: Mailgun competes with SendGrid, Postmark and Amazon SES. For open-source options, see Enlisted's ranked list of open-source Mailgun alternatives.