9 Best Free Transactional Email Services: SendGrid vs. SparkPost & More

Have you ever wondered why your emails go to Spam folder? How do we know the delivery rates and how many recipients open our emails? With the help of transactional email services, these problems are solved completely. In this guide, we’re going to review and compare the best free transactional email services.

Problems Sending Emails The Normal Way

Normally, we use an utility called sendmail to send emails from our websites to customers / readers. This utility is installed on most hosting or servers (but not all). If you’re using WordPress and don’t install any plugin for sending email, that means you’re using sendmail.

However, using sendmail has a big disadvantage: your emails are going to Spam or Junk folder. And your recipients might ignore them or don’t read them. The problem of marking an email spam depends a lot on your server IP (whether or not it’s blacklisted, or even if it’s not blacklisted but not in the whitelist, your emails still can be marked as spam) and how you setup your server / domain (SPF or DMIK record for example). These things are quite complicated and beyond the technical capability of most users.

Moreover, using your host or server to send emails also affected by the rules of hosting provides. MailPoet has made a complete list of hosting providers with their sending email limits. If you’re sending many emails (like newsletter), you should think about another solution.

Using Gmail SMTP To Send Emails

One of the popular solution to send emails from websites is using Gmail SMTP. If you use WordPress, there are many ways to connect your WordPress website with Gmail. We recommend using Gmail SMTP because it’s compatible with latest Gmail API and using OAuth 2.0, which is secured. You can also use other popular plugins such as WP Mail SMTP or Easy WP SMTP.

However, Gmail limits the number of emails sent up to 200 per day and 20 per hour. It’s plenty for most people, but if you want to send newsletter, the numbers seems to be low.

Another disadvantage of sending from Gmail SMTP is all your emails, no matter what email address and from name you use, Gmail always shows up the avatar and email of your Gmail account that you use for SMTP. This is not cool and might affect your company branding where you don’t want your personal information is used in a wrong place.

Sending Emails With Transactional Email Services

To avoid the disadvantages above, we should use a transactional email service. To understand about this kind of service, we need to understand about transactional email first.

What Is Transactional Email?

Transactional email is email sent to an individual based on some action. It could be:

  • an action they took directly
  • an action they were the target of or,
  • perhaps even inaction on their part

For example, if you’re using WordPress theme EightyDays by GretaThemes, and on that blog, you allow your readers to subscribe to comment. So, when a new comment is added, they will receive a notification email. That email is a transactional email.

Or if you run an online shop, when an order is placed, the website automatically sends an email to the customer, letting them know about the order content. That email is also a transactional email.

Other samples of transactional emails:

  • email address confirmations
  • password resets
  • purchase receipts
  • “thank you for [some action]”
  • account balance updates
  • weekly manifests
  • auto-responders
  • support requests
  • cart abandonment
  • monthly invoices
  • app error alerts (developer tested!)
  • automated re-engagement (marketer approved!)

Benefits Of Using Transactional Email Services

As said above, sending email the normal ways has a many cons than pros. And transactional email services were born to solve these problems.

Some benefits of transactional email services:

Send More Emails, Faster

You’re likely not limited by number of emails by day or by hour. Some services like SparkPost allows you to send up to [100,000 emails per month for free]((https://www.sparkpost.com/pricing/)!

Ensure Your Messages Get Delivered

All transactional email services are optimized to send emails and have whitelisted IPs. Your emails are always send to recipients’ inboxes!

email delivery

Sending Emails With APIs

You can send emails via SMTP, curl or any libraries for your preferred programming languages:

email sending api

Tracking And Analytics

The transactional email services have reports to help you see the insights of your emails: how many emails are sent, what is the delivery rates, how many are opened and clicked, etc. This information is very helpful to run A/B tests and optimize the click-through-rates for your business.

report

Best Transactional Email Services

Here is the list of best free transactional email services with detailed review and pricing:

SparkPost

sparkpost

SparkPost is the world’s #1 email infrastructure provider and the most performant email delivery service available. SparkPost customers send over 3 trillion messages a year, more than 25 percent of the world’s non-spam email. SparkPost provide proven highest inbox delivery rates, easy setup and launch, and the most comprehensive analytics and insight.

WordPress: SparkPost also has its official plugin for WordPress.

Pricing: Free for 100,000 emails / month.

MailGun

mailgun

Built by the Rackspace team, already known for reliable hosting, Mailgun is designed to be a reliable email service for developers. Not only can it deliver your emails well, it even includes email validation features to check and make sure you’re sending emails to valid addresses.

You can send emails the way you want in Mailgun, with isolated sub-accounts for each domain you add, giving you an easy way to manage all of your email lists separately or manage client emails along with your own. There’s batch sending features to personalize emails, detailed analytics and logs, and a powerful parsing engine to turn incoming emails into JSON and route it where you want.

WordPress: MailGun also has its official plugin for WordPress.

Pricing: Free for 10,000 emails / month.

SendInBlue

sendinblue

SendinBlue was created to become the simplest, most reliable and cost-effective marketing platform. This all-in-one solution now powers marketing campaigns for over 50,000 companies around the world!

Their pricing remains one of the most cost-effective options as you scale up. Their user interface is very clean, and in addition to transactional email you can also use SendinBlue for normal email marketing campaigns, marketing automation, and transactional SMS messages.

WordPress: SendinBlue also has its official plugin for WordPress

Pricing: Free for 9,000 emails / month.

SendGrid

sendgrid

One of the largest transactional email sending services, SendGrid delivers over 14 billion emails each month for companies like Spotify and Uber. While SendGrid are neither the cheapest nor the most expensive option, what’s attractive about their offering is their incredible email analytics, 24/7 live support, easy integration with a dead simple API, and their reputation for having good deliverability rates.

In addition to sending standard transactional emails over its API, SendGrid also includes a marketing platform with a drag-and-drop email template editor and online list management. You can create your templates and manage your lists in SendGrid, then use that data through SendGrid’s interface or its API—or you can handle everything yourself. And, if anyone replies to your emails, SendGrid can parse those emails and any attachments they may contain, and send them along as you’d like.

WordPress: SendGrid also has its official plugin for WordPress

Pricing: Free for 12,000 emails / month.

Amazon SES

amazon ses

Amazon Simple Email Service (Amazon SES) is a cost-effective email service built on the reliable and scalable infrastructure that Amazon.com developed to serve its own customer base. With Amazon SES, you can send and receive email with no required minimum commitments – you pay as you go, and you only pay for what you use.

WordPress: There’s no official plugin for WordPress. But there are some other plugins such as WP SES or WP Amazon SES SMTP.

Pricing: Free for 62,000 messages / month if you are an Amazon EC2 user.

Mailjet

mailjet

Being one of the leading transaction email service provider, Mailjet has a good price and great features to customize emails to clients in mass scale fairly easily. When sending thousands of emails the ability for customization is essential to avoid being flagged as a spam mail.

One of the great feature is that the customization for each email is individual. The ability to do split testing is very helpful as well. The templates included were also very helpful to build professional looking emails.

WordPress: MailJet also has its official plugin for WordPress

Pricing: Free for 6,000 emails / month.

Postmark

postmark

At Postmark, you need to buy credits to start sending emails ($0.25 for 1000 credits, 1 credit = 1 email sent). Postmark guarantees the delivery time below 10s and 100% of delivery rate. You’ll get 45 days of searchable history, so you can see the full contents of the emails you’ve sent and pinpoint why they bounced.

WordPress: Postmark also has its official plugin for WordPress

Pricing: Free for first 25,000 credits (= 25,000 emails).

Pepipost

pepipost

With the reliable and scalable cloud-based email infrastructure, Pepipost helps hundreds of businesses send millions of emails every day without any hassle. Pepipost follows the best delivery guidelines, protocols, and industry standards to fight against spam and make sure that emails get delivered and reach recipients’ inboxes in the blink of an eye. Pepipost offers an easy-to-use interface with precise real-time data and useful analytics.

WordPress: Pepipost also has its official plugin for WordPress

Pricing: Free for 25,000 emails / month.

Elastic Email

elastic email

Elastic Email is all the Email marketing and delivery tools you need to communicate with your customers. Use Elastic Email as your outbound SMTP server to improve your delivery rates and seamlessly scale from 100 emails to 100 milion per month on our ultra-fast global infrastructure. Elastic Email provides inbound notification, A/X split testing and private IPs.

WordPress: Elastic Email does not has its official plugin for WordPress, but you can use free plugin ElasticEmail Plugin

Pricing: Free for 150,000 emails / month.

Conclusion

There’s no doubts that using a transactional email service is better than using your host or SMTP to send emails. Here at GretaThemes, we use MailGun and very happy with it. The email delivery rates is very high, the integration is quick as it has WordPress plugin. How do you send emails? Let us know in the comments.

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