Mailgun Vs. SendGrid. Best Transactional Email Services

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Most successful marketers know that email marketing is still one of the best and most effective marketing methods today. Yes, even with social media marketing on the rise, email marketing is still pretty much king.

Most businesses still use email marketing as one of the pieces in their overall online business strategy.

Of course, you are not going to send emails manually. That would be a colossal waste of time. Just imagine it, you are writing emails, one by one, and sending them to customers and potential customers. Just thinking about it hurts. It really does.

Thankfully, we have STMP providers that can do the job for us, or at least make it way easier than it used to be.

Of course, you already know all of that. You’ve read about it and know what you want. You want a good MailChimp alternative. MailChimp is the most popular STMP provider out there, but it’s getting too expensive.

You want something that will cost a little less and do the job just as well. Lucky for you, you are in no shortage of options.

In this article, we are going to take an in-depth look at two of these options: MailGun and SendGrid. In this Head-to-head comparison, we are going to look at:

  • Overview
  • Features
  • Pricing
  • Integrations
  • Customer Support
  • Devices Supported

So, let’s get started, shall we?



MailGun is an email automation service that has earned the reputation of being reliable. The service has been designed by developers and with developers in mind, and it integrates smoothly with popular languages, including Ruby, C#, Java, Python, and PHP.

The transactional email API integrations provide users with a comprehensive cloud-based service for receiving, sending, and tracking emails that are sent via applications and websites.

The software automates the process of email delivery to give your outbound emails the best chance of getting into the destination inbox. The API control panel lets users monitor the event of every email, and couple with the easy SMTP integration, they eliminate the mess involved with sending transactional or build emails.

The robust inbound routing and storage features that Mailgun has takes the application one step further. The intelligent email parsing engine, for example, makes it easy to interpret email data.

It’s also straightforward to retrieve incoming emails thanks to the temporary three-days storage and the fact that all inbound emails to the application are fully transcoded and parsed.

The featured smart rules engine enables users to manage millions of inbound emails with few rules, and it gives them an intelligent way to deal with the spa entirely.

Mailgun also comes with excellent report features as well as searchable logs to keep you up to date with what’s happening in your email.


SendGrid is one of the most popular Cloud-based email platform available on the market today. SendGrid is more than proud to have clients such as Uber, Pinterest, Airbnb, HubSpot, FourSquare, LinkedIn, Spotify, Pandora, Taco Bell, Costco, Intuit, and more. For these companies, SendGrid delivers over 18 billion customer engagement emails every month – that’s over 4,190 emails per second!

Established as an API company, SendGrid is built to serve developers and make sending emails a quick and painless process for companies. It gives users the choice to send emails over HTTP, SMTP, or they can even – if they choose to – use one of the company’s official client libraries.

SendGrid’s main strengths are deliverability, scalability, and reliability.

The company has a highly qualified team with over 30-years of experience that puts its efforts on nothing but email delivery and compliance to make sure your emails end up in the destination inbox folder.

Thanks to the team’s fostered close relationships with leading mailbox providers, including Gmail, Outlook, and Yahoo, and they work together to fight spam, phishing, mobile spam, denial of service attacks, and other forms of email abuse.

SendGrid’s excellent 24/7 customer service makes sure you never face a problem that can’t be solved with a phone call, online chat, or email. The team is composed of 25 highly trained success engineers that are always ready and willing to help.

You can also check out this SendGrid VS SendinBlue Comparison.


You know what, to make matters simpler, let us put them in a table, side-by-side, to have a better view.



  • Sending Email Features
  • Inbound Routing
  • Inbound Email Storage
  • Email Tracking
  • Email Analytics
  • Email Validation
  • Marketing Email Services
  • Reputation Monitoring
  • Email Template Engine
  • Unsubscribe Tracking
  • Suppression List Management
  • Dedicated IP Address
  • Multiple IP Addresses
  • Sub-user API
  • Parse Webhook
  • Open and Click Tracking
  • SMTP Service
  • SMTP Relay
  • SPAM Filter Testing
  • Feedback Loop
  • 24/7 Support
  • DKIM Customization
  • Domain-Level Load Balancing


Winner: SendGrid. Just from looking at them side-by-side, you can see that SendGrid offers way more features. The excellent customer support is also a great bonus and makes it easy for SendGrid users to overcome any issues they might run into.


MailGun: MailGun offers several pricing packages and options. The pricing packages depending on the number of emails you will need to distribute.

Here is a quick look at how much it would cost you to use MailGun:

  • First 10,000 emails:$0 – Free
  • Next 500,000 emails:$0.0005/email
  • Next 1,000,000 emails: $0.00035/email
  • Next 5,000,000 emails: $0.00015/email
  • More:$0.0001/email

SendGrid: SendGrid offers three packages. However, they do offer a 30-day free trial, so you can try the solution out before committing. That will give you access to the essential plan with 40,000 emails available to send.

  • Free Forever

That’s not a package, but it does give you:

  • Up to 100 emails per day – forever
  • Store up to 2,000 contacts

Now to the plans:

  • Essential Plan – $9.95/mo.

With this plan, you get:

  • Up to 40,000 emails every month (after which you pay $0.001 for every extra email)
  • Shared IP
  • SendGrid Marketing Campaigns
  • APIs and Webhooks
  • DKIM Customization


  • Pro Plan – $79.95/mo.

With this plan, you get all the features of the essential plan, plus:

  • Up to 100,000 emails every month (after which you pay $0.00085 for every extra email)
  • Dedicated IP
  • Sub-user management


  • Premier Plan – Ask for custom pricing

With a plan, you get all the features of the pro plan, plus:

  • More than 5 million emails/mo.
  • Custom Price per extra email
  • Customer Success Manager for over 5 million emails
  • Prioritized Support for more than 5 million emails

Winner: It depends.

SendGrid offers more features, but MailGun’s pricing may be more suitable for some businesses that like more freedom in their payments. So, it depends on what you want from the solution.


MailGun: MailGun is able to use PHP,, and Java technology to connect to any third-party application or service.

SendGrid: SendGrid offers integrations with top marketing solutions partners such as HubSpot and Pardot, it also integrates with Microsoft Azure Marketplace, AppDirect, Heroku, and IBM. However, the solution can integrate with any applications using an SMTP relay or a Web API.

Winner: SendGrid

SendGrid offers a bunch of native applications while all Mailgun requires technical experience to integrate with other third-party systems.

Customer Support

MailGun: MailGun offers live support and a ticket system.

SendGrid: As said before, SendGrid has one of the best customer support systems in the business. They offer live support, support via Email and Phone No, plus a ticket system as well.

The support team is experienced and helpful, and it’s very unlikely you will run into an issue that they can’t help you solve.

Winner: SendGrid

Devices Supported

MailGun: MailGun is web-based and works on devices running Windows and Mac OS.

SendGrid: SendGrid is also Web-based, but it can run on devices running Windows, Mac OS, Android, and iOS. This gives it an advantage as it works better on mobile applications.

Winner: SendGrid.

I hope you found this article helpful. If you did, why not share it with a friend or a colleague who may find it helpful as well?

You may also have a question or a comment, and in this case, we will be waiting to hear them. Just leave a comment below and we will get back to you with the answers as soon as possible.

If you are a small business owner, we know how it could be confusing to choose the right tools, solutions, systems, and applications for your business, and we would like to help just a little bit with that.

Well, that’s it, we hope to see you again soon!

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