15 years helping Irish businesses
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What Is Mailgun?

The best email API solution for connection-driven businesses. Mailgun empowers senders like you to build with the most powerful and reliable email service provider in the industry with our flexible, scalable, and results driven email sending platform.

Mailgun’s APIs make integrating email into your existing applications incredibly easy with our RESTful API, SMTP relays, and comprehensive documentation.

Mailgun Email API’s Documentation and API Libraries cover popular programming languages like Python, Ruby, Java, C# to best suit your development team’s needs.

Understand every detail of what happened with your email with Mailgun’s log retention and email analytics. Spend less time parsing through your incoming email streams with Mailgun’s Inbound Routes.

With Mailgun, companies are empowered to send their emails straight to the inbox through various email authentication protocols. Protect your sender reputation by sending with SPF, DKIM, and DMARC protocols.

Try it for free!

Who Uses Mailgun?

Our product is built for developers that need a simple email API integration to send, receive & track email in their app whether using Python, Ruby, PHP, C#, Node.js or Java across multiple industries

Mailgun Software - Hourly Engagement
Mailgun Software - Delivery Failure Overview
Mailgun Software - Performance By Mailbox
Mailgun Software - Email Engagement Overview

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Reviews of Mailgun

Average score

Overall
4.3
Ease of Use
4.3
Customer Service
3.9
Features
4.2
Value for Money
4.0

Reviews by company size (employees)

  • <50
  • 51-200
  • 201-1,000
  • >1,001
Brandon
Brandon
Creative Strategist in US
Verified LinkedIn User
Marketing & Advertising, 2–10 Employees
Used the Software for: 6-12 months
Reviewer Source

Alternatives Considered:

Incredible Deliverability, Clean Platform, Success with MailGun!

5.0 5 years ago

Comments: Super pleasant, great chat support, fast email support replies, always quick to help and communicate.

Pros:

Clean UXI for navigating the system, simple set up, clear dashboard to find issues quickly and navigate around the site. Ability to clean database lists to minimize bounce. However, the BEST part is they are free up to 10,000 emails a month, which is a ton! So to give the full custom power of connecting your domain and sending out, that's a huge value. I will get over that limit and upgrade soon, but that is an incredible way to start a relationship. Almost a year of free service to use their system versus my server.

Cons:

I actually have not found anything that I do not like. Many will complain about high bounce rates or going into spam. I find that issue arrises on multiple factors outside of mailgun control, such as the receiving server, and the mail habits of the person opening it, do they get a bunch of spammy mail already? And was the mail piece written in a poor nature, this increases spam folder direction, however, they do have dedicated IP service for those wanting to mitigate one area of cause for spam direction. Again, never been my experience.

Luke
Founder in Germany
Information Technology & Services, Self Employed
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

Great Software Gone Greedy

4.0 3 years ago

Comments: Outside of them changing their payment tier / plan system I haven't had any issue with Mailgun. I always found their customer service great and the product itself to be fantastic and does exactly what it's supposed to. I just really wish they brought back the routing feature to the free tier.

Pros:

Great API, Super easy to integrate into various types of website / webapp setups. I previously used Mailgun for a variety of different integrations and never had any issues. Complete frictionless integration from beginning to end.

Cons:

I dislike that the features we used to get for free are now hidden behind a paywall. Features such as routing emails I find to be rudimentary and were previously built into the free / pay as you go tier. Now it is locked behind the $35 dollar tier. This is a pain for small businesses that want to accept a few emails from a professional email with their own domain. Now to unlock that feature they must over commit to a tier with an allowance of 10k plus emails a month. This I feel has squeezed many small businesses out of using their service and it has definately moved me from recommending & using them in future as I would have previously for my smaller clients.

Clement
ceo in France
Marketing & Advertising, 2–10 Employees
Used the Software for: 6-12 months
Reviewer Source

Alternatives Considered:

Worst email product and support ever used (RUN AWAY)

1.0 2 years ago

Pros:

sub-accounts management (before getting suspended for no reason)

Cons:

Mailgun disables your account after 6 months working on integrating with it ; out of nowhere, for no reason. + they keep billing you every month (over 600$ at this stage) even though your subscription mentions that you're at 0$/month. When you're trying to reach out to the support, they close our tickets without even answering, ghosting. Absolutely WORST product ever used and support team faced, it's absolutely garbage. This goes without saying that Mailgun way of coding emails is terrible, their delivrability is one of the worst of the market. Do yourself a favor, go to sendgrid. Mailgun SUCKS.

Lucas
Lucas
Creative Director in US
Verified LinkedIn User
Information Technology & Services, Self Employed
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

Bare-bones but super reliable and easy to use.

5.0 4 years ago

Comments: I use several different email service providers, each for a different reason. I use Mailgun almost exclusively for inbound mail processing. The inbound processing also offers a preliminary spam filter so that at least most of the spam isn't sent further down my process chain. It's super easy to set up inbound routes using specific strings or wildcard matches that will accept mail and forward to multiple different recipients. These recipients can be either proper email addresses or webhook endpoints. I often use the address forwarders in combination with the SMTP outbound service to build a system where Gmail users can use their free gmail.com account to receive and send emails from their small business domain without having to sign up for and configure a proper G Suite account. I use the webhook forwarders in combination with Zapier and Integromat to receive any emails that need to be processed and automatically acted on. Mailgun normalizes all the different types of email and attachment encodings and packages the message data into an easy-to-parse JSON package that makes it super easy for me to grab what I need and reliably act on the normalized data.

Pros:

Inbound mail processing with spam filter Free tier offers great sending limit SMTP and API integration for outbound messaging

Cons:

This product doesn't offer any sort of backend mail building or sending functionality. It's only an engine for sending messages. This means you'll have to build your messages somewhere else and integrate them into your sending code.

Chandan
Chandan
Marketing Manager in India
Verified LinkedIn User
Marketing & Advertising, 2–10 Employees
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

Helps you land into prospect's inbox

5.0 last year

Comments: Mailgun is a comprehensive email marketing service that provides businesses with the tools they need to create effective email campaigns and ensure deliverability. Its advanced features make it a popular choice for businesses of all sizes looking to improve their email marketing efforts.

Pros:

The DMARC record validation and domain verification process is so smooth and generous that it increases your chance of landing in your prospect's inbox by almost 100%.

Cons:

The pricing is higher than any other competitor products.