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Mailgun vs Mandrill: What are the differences?

Mailgun: The Email Service for Developers. Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly; Mandrill: Send transactional, triggered, and personalized email, then track results. Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.

Mailgun and Mandrill can be primarily classified as "Transactional Email" tools.

Some of the features offered by Mailgun are:

  • Optimized Queue
  • Scheduled Delivery
  • MIME Assembly

On the other hand, Mandrill provides the following key features:

  • Inbound Email- Set up inboxes for Mandrill to control. When they receive email, we鈥檒l make an API call to your app with all the relevant information, so you don鈥檛 have to worry about what鈥檚 happening behind the scenes.
  • Webhooks Support- Create custom event notifications, keep track of new signups and unsubscribes in real-time, get a notice of every spam complaint so you can flag them in your database.
  • Rules Engine- Modify the content of email coming through Mandrill without having to involve developers. For example, you could tell Mandrill to take any email coming from confirmation@yourdomain.com, give it a new template, and add Google Analytics tracking.

"Quick email integration", "Free plan" and "Easy setup" are the key factors why developers consider Mailgun; whereas "Simple installation", "Great api" and "Generous free allowance to get you started" are the primary reasons why Mandrill is favored.

According to the StackShare community, Mandrill has a broader approval, being mentioned in 2313 company stacks & 208 developers stacks; compared to Mailgun, which is listed in 1490 company stacks and 268 developer stacks.

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What is Mailgun?

Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.

What is Mandrill?

Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.
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What are some alternatives to Mailgun and Mandrill?
Twilio SendGrid
Twilio SendGrid's cloud-based email infrastructure relieves businesses of the cost and complexity of maintaining custom email systems. Twilio SendGrid provides reliable delivery, scalability & real-time analytics along with flexible API's.
Postmark
Postmark removes the headaches of delivering and parsing transactional email for webapps with minimal setup time and zero maintenance.
Mailchimp
MailChimp helps you design email newsletters, share them on social networks, integrate with services you already use, and track your results. It's like your own personal publishing platform.
Mailjet
Mailjet is a real-time Cloud Emailing platform: scalable, agile and flexible. Our unique algorithm boosts your deliverability and our platform provides in-depth insight so you can optimize more than ever.
SparkPost
SparkPost is the world鈥檚 #1 email delivery provider. We empower companies with actionable, real-time data to send relevant email to their customers which increases engagement and both top and bottom line revenue.
See all alternatives
Decisions about Mailgun and Mandrill
Todd Gardner
Todd Gardner
President at TrackJS | 9 upvotes 26.8K views
atTrackJSTrackJS
Mailgun
Mailgun
Mandrill
Mandrill

We've moved our transactional email away from Mandrill to Mailgun. We had continued using Mandrill after Mailchimp deprecated the service awhile back, because the amount of credits we were offered essentially made it free.

However, following a couple weeks of frequent downtime and poor service transparency from Mandrill, we decided it was time to make the switch. It appears they no longer had any engineers with the ability to identify the core problems.

Mailgun has been more reliable, yet not as reliable as we expected. We still see issues a few times per week with the API failing when we attempt to make a call. The Reporting UI is way better.

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Interest over time
Reviews of Mailgun and Mandrill
Review ofMandrillMandrill

This is by far the best way to send emails. I learned the API in under 15 minutes and started sending email right then. And best of all, it's completely free to use them for me! They give you 12,000 emails/month for free. I don't have to send much email, so I've never paid a cent. I highly recommend them.

Review ofMailgunMailgun

Very easy to setup, support was helpful, too. The free plan is great for starting out. Used it in conjunction with my cloud hosting on DigitalOcean and had no trouble getting it all setup. Still not doing high volume yet, but so far pleased.

How developers use Mailgun and Mandrill
Avatar of Yaakov Belch
Yaakov Belch uses MailgunMailgun

All my personal e-mail (inbound and outbound, personal, transactional and mailing lists) goes through mailgun.

This gives me full control, especially about e-mail addresses: I assign different inbound e-mail addresses for different contacts, so that I can filter SPAM by just blocking the e-mail addresses that leaked out.

Avatar of Foundbite
Foundbite uses MandrillMandrill

We use Mandrill to send transactional emails and newsletters. We've just moved from SendGrid as Mandrill has far better support for templates and also integrates really nicely with MailChimp where we can design the emails.

Avatar of Pathwright
Pathwright uses MandrillMandrill

We started off with AWS SES, but found it to be lacking in diagnostics and reporting. Mandrill is a quantum leap forward in this regard. Has some other really neat features carried over from MailChimp (templating).

Avatar of Volkan 脰z莽elik
Volkan 脰z莽elik uses MailgunMailgun

Mailgun is the only mailing service that I trust to deliver critical user and system emails of zerotoherojs.com

It works great, and for my current usage volume it鈥檚 free.

Avatar of osu! Ripple
osu! Ripple uses MailgunMailgun

Mails from the website frontend are sent through Mailgun, mainly because of the free plan of 10,000 emails which perfectly suits us.

Avatar of Ataccama
Ataccama uses MandrillMandrill

We use Mandrill to handle all transactional emailing - from welcome letters to password reminders to notifications.

Avatar of Dynamictivity
Dynamictivity uses MandrillMandrill

Mandrill is used to send out all e-mail from the application and any tools and services in our infrastructure.

Avatar of Romans Malinovskis
Romans Malinovskis uses MandrillMandrill

We have add-on for Agile Toolkit that implements "Outbox" for your application through Mandrill API.

Avatar of atandy
atandy uses MailgunMailgun

I forward all e-mails to Mailgun and appreciate being able to access the objects easily as JSON.

Avatar of Onezino Gabriel
Onezino Gabriel uses MailgunMailgun

Servi莽o para envio de email de modo transacional garantindo o envio e o monitoramento do uso

How much does Mailgun cost?
How much does Mandrill cost?