Are you looking for the best SMTP transactional email services?
SMTP (Simple Mail Transfer Protocol) makes sure your transactional emails reach users’ inboxes (and not the spam folder). It even lets you automate emails based on user actions and behavior.
The difficult part is finding the right SMTP service, as there are many email services on the market.
We’ve done the research for you, and in this guide, we’ll share the best SMTP email services for marketing and automation.
1. sendLayer
SendLayer is the most reliable SMTP transactional email service. It makes sure your emails appear in the user’s inbox as quickly as possible.
What we love is that you can easily connect and send your website emails using SendLayer API. No complex processes.
Makes it easy for anyone to start sending emails and notifications that include:
- Transactional email
- Registration emails
- Confirmation emails
- Shipping Notifications
- Reset password
- Abandonment of the car
Whatever you need with SMTP, SendLayer has you covered. It works seamlessly with over 1000 platforms. Some of the most popular ones include WordPress , WooCommerce , BigCommerce , Joomla, Drupal, and HelpScout.
With SendLayer, you don’t have to worry about which programming language (like PHP or Python) you use to build your site or app. Your emails will just work!
But that’s not all. When you subscribe to SendLayer, you get access to advanced features like mailing lists and groups for easier management. Plus, you’ll get detailed email logging to track the entire email journey and verify that your emails are reaching their destination.
Plus, it has built-in analytics that you can filter by email, status, recipient, etc., to optimize performance accordingly.
While we’ve covered the basics, colombia phone number library SendLayer has a lot more to offer. Learn more about SendLayer ’s transactional SMTP service .
2. SMTP
SMTP is the most 11+ powerful wordpress plugins for lead generation compared 2024 powerful email delivery service on the market. It allows you to send and track large volumes of emails. And it has a highly responsive infrastructure that ensures fast, delay-free deliveries.
SMTP allows you to send all types of transactional emails as well as marketing emails. This includes automated emails such as order confirmations, shipping notifications, order status updates, user authentication, and password resets.
With this service, your email process will be smooth and seamless to improve user experience on your site. Additionally, all plans include a Reputation Defender (add-on). This monitors the health of your email list and protects you against soft and hard bounces.
The setup and integration process is quick and easy, so you can start sending emails straight away. Plus, it gives you access to comprehensive reports on your email delivery and engagement performance.
SMTP is suitable for all types and sizes of businesses and allows you to scale your email volume as your business grows. It is without a fanto data doubt the best SMTP relay and email delivery service in the world.
Price: The basic plan costs $25 per month. You can try the service for free for 30 days with a limit of 50,000 emails.
3. Brief
Brevo (formerly SendinBlue) is a popular email marketing platform. You can send transactional emails to your subscriber lists and track the emails for open rate, bounce rate, click rate, etc. Brevo also offers SMS marketing service to send promotional and transactional messages.
One thing that stands out about Brevo is that it manages SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) signatures across its domain names. This is a technical standard that helps protect email senders and recipients from spam, spoofing, and phishing.
Other notable features include drag and drop email builder, welcome emails, confirmation emails, A/B testing for emails, and advanced reporting for an optimized email marketing campaign .
Price: 300 emails/day with unlimited contacts for free. The basic plan starts at $25/month.
4. mailgun
Mailgun is a powerful email service provider for professional developers . It offers high email deliverability, and with its powerful APIs, you can send, receive, and track transactional emails easily.
Mailgun even has advanced email validation to increase your conversions.
It has a solid sending infrastructure with SMTP integration and a simple RESTful API to send bulk emails to your users.
When you sign up for Mailgun, you get access to responsive transactional email templates that are ready to edit and use. You can use the drag-and-drop editor to quickly create stunning emails without having to use HTML and CSS. Mailgun also includes easy-to-use email marketing tools like segmentation, personalization, and A/B testing.
Price: It’s free for 30 days with a limit of 5,000 messages. After the trial, by default, you’ll be upgraded to the Foundation 50K plan which costs $35 per month. You can also choose your own plan or opt for a pay-as-you-go service.
5. SendGrid
SendGrid is a cloud-based SMTP transactional email provider that comes with a reliable platform for sending and receiving bulk emails with high deliverability rates.
In addition to sending transactional emails, they also allow you to create email marketing campaigns. You can create an outstanding email program using the email API option to send emails at scale.
It comes with a variety of integration options to get you started sending emails. You can get a complete analytics and metrics report and real-time feedback on every email sent.
If you want to use a dedicated IP address for sending email, SendGrid offers this in their Pro Email API plan or in their Advanced Marketing Campaigns plan.
Price: In the first month, you can send 40,000 emails for free. After that, they offer 100 emails/day forever free plan. The Essential plan starts at $19.95 per month for up to 50,000 emails per month. The price increases with the number of emails you need to send.
6. Amazon SES
Amazon SES is a flexible and scalable SMTP transactional email service that is primarily targeted at application developers and digital marketers. helps you easily send transactional emails and notifications to your users. It lets you use the SMTP interface or an Amazon SES API to integrate Amazon SES directly into your application.
It comes with a robust system and functionality that makes sure your emails bypass spam filters. You can track email delivery, bounce rate, and rejections through its smart mechanism.
Price: This is a pay-as-you-go service, meaning you’ll have to pay for what you use. It allows you to send 62,000 emails per month for free. After the free limit, you’ll have to pay $0.10 per 1,000 emails. If your emails include attachments, you’ll have to pay $0.12 per GB.
7. postmark
Postmark by ActiveCampaign is one of the best SMTP transactional email services that offers ultra-fast delivery for your transactional and request emails. Postmark has SMTP servers distributed around the world to ensure fast email delivery.
It has an excellent tracking system that allows you to monitor how many emails are opened and how much time is spent on the email you send.
Price: The basic plan costs $15 per month for 10,000 emails. You’ll have to pay $1.80 for each additional 1,000 emails.
8. Moss End
Moosend is an affordable SMTP transactional email service that comes with a drag-and-drop email builder to design your transactional emails instantly. It has a 98% deliverability rate, which means it can beat spam filters.
It allows you to create a mass email send and track them in real-time. You can also get advanced analytics reports for your transactional emails.
One thing to remember is that Moosend only has one form to contact the support team. There is no phone, email or chat support.
Price: It’s free for 30 days. After that, it starts at $9 per month for 500 subscribers. It’ll work out to $7 per month if you choose to bill annually. All plans offer an unlimited number of emails and campaigns each month.
9. Mailchimp Transactional Email
Transactional Email , formerly known as Mandrill, is an SMTP transactional email service from MailChimp. It is a secure and efficient platform for sending transactional emails without delivery issues. You can use Transactional Email to send data-driven, targeted, personalized, and eCommerce emails to your users.
With its advanced tracking, you can monitor the open rate, bounce rate, and click rate of your emails. Plus, the Mailchimp platform gives you access to email templates and campaigns to improve your marketing strategies.
Price: There is a free forever plan with 2,500 emails and 500 contacts. It costs $9.30 for 5,000 emails/month. The cost increases with the number of emails and subscribers you have.
That’s our list of the best SMTP services. If you’re looking for more options, you have MailJet and SparkPost. Keep in mind that Gmail is not a good choice for transactional emails. They have a lot of restrictions and you’re likely to run into a lot of hiccups with your emails.
It is best to use a dedicated SMTP service. Now, since the list is long, you might still be wondering which one is the best. We give you our verdict below.
What are the best transactional email services?
When choosing the best SMTP service, you will need to consider important factors:
- Sender reputation
- Expandable infrastructure
- Marketing Automation
- Free email plans and affordable paid plans
- Detailed email reporting and analytics
Each SMTP service on this list has something unique to offer, but the ones that take the cake are SendLayer and SMTP.com . They have everything you need in an SMTP service, including robust setup, high delivery rates, and a reliable support team.
For reliable email sending on a small scale, SendLayer is our #1 choice. If you need more power to send a large number of emails, SMTP.com is the best choice.
We hope this article helped you find the best SMTP transactional email services. If you use WordPress, you might want to take a look at WP Mail SMTP . It helps troubleshoot any email deliverability issues you might be facing on your site.
Follow our tutorial here ” How to Setup SMTP in WordPress . We also have a specific guide for WooCommerce stores ” How to Fix WooCommerce Email Issues.
Next, you may want to check out the best CRM software for small businesses .
You may also want to check out these related resources:
- Best Email Newsletter Plugins for WordPress
- How to properly set up form notification emails
- How to Grow Your Email List with Social Proof Notifications
These posts will help you create an email marketing strategy that works wonders for your online business.