Improve performance with email split testing
Split test two or more versions of a template to learn which email performs best and make adjustments to maximize engagement.
Take the guesswork out of your emails
Continuously optimize email templates for maximum performance and adapt to recipient behavior. A/B test email subject lines and content to learn what resonates more with users.
Test more, learn more
Get better insights by creating up to 5 versions of your email. Simply make new versions by duplicating your template and then editing each version’s subject line, content or both.
Easily view A/B testing metrics
In your template statistics dashboard view the open rate, click-through rate, unsubscribes and spam complaints for each template version. Choose the best-performing variation based on your goals.
Create templates with 3 builders
Design professional templates no matter the skill level. Use the Drag & drop builder for 90+ pre-made content blocks, rich-text for more simple templates, or the HTML editor to code them yourself.
Use multiple sending domains
Effortlessly test and manage email templates for multiple domains, keeping data and settings separate. Quickly filter templates in your gallery by domain.
How you can use email A/B testing
Play around with personalization
Keep it simple with basic variables for customers’ names or test out more advanced templates with filters, dynamic tables, conditional statements, and for loops.
Great deliverability, always
MailerSend has 13+ years of email delivery experience and is consistently ranked high for deliverability. You can rest assured that your messages will be delivered to customers’ inboxes.
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Amazing product and support!
"MailerSend is extremely easy to use and super fast to set up. I was able to send the first email via the API in minutes. What's really worth mentioning is the outstanding customer support."
Easy to use API
"It is quite easy to create new templates and send them through the API. Up until now, we didn't have any problems with receiving emails. Plus, the customer support is great!"
Send emails with confidence
"Mailersend was easy to set up and add to my website and I can be sure that my transactional emails go out on time and actually get delivered. The features are perfect for what we need and the system works like a charm!"
Frequently asked questions
What is email split testing?
Email split testing is the process of testing multiple versions of an email or email template to learn which one performs the best.
Why is email A/B testing important for my transactional emails?
It’s important to optimize your emails for engagement in order to maximize their performance as well as maintain a high level of deliverability. The higher the engagement and the lower the spam complaints, the better your deliverability will be. Email split testing helps by allowing you to gain insights into how different elements perform compared to one another and make adjustments to optimize them.
How many email split tests can users have at the same time?
You can currently carry out 1 split test at a time with up to 5 template versions.
Do I need a separate tool for email split testing?
With MailerSend, you can send emails, create templates and carry out multivariate testing all from a single platform. There’s no need for a separate email split testing tool.
What is the difference between split testing, A/B testing and multivariate testing?
Email split testing is a method of testing the effectiveness of different elements within an email; it encompasses A/B testing and multivariate testing. A/B testing involves testing 2 versions of an email while multivariate testing involves testing 2 or more. You can test up to 5 variations of a template with MailerSend.
Which elements should I test?
The subject line and email content are the most common elements to split test. Your email content includes headlines, titles, images and your call to action (CTA). Usually, when performing an email split test, you would change only one element at a time for each version.
How can I set up an email split test?
Creating an email split test is easy. All you need to do is head to the page of the template you want to test and select the Split test tab. Check out our guide to learn more about how to set up an email split test.
More features to explore
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Email API
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Verify a single email address or upload an entire email list to verify in bulk.
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Control your sendings
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Every email is a learning experience. Monitor your email performance to find what works best.
Manage the unsubscribe page
Whether people are unsubscribing, give them a compelling reason to stay.
Suppression list management
Protect your sending reputation by adding email addresses and domains that you should not send to.
Track the results
Create emails
Custom HTML email builder
Interested in writing your own HTML code? Our HTML email template editor gives you the flexibility to build exactly what you want.
Drag & drop email template builder
Our drag & drop email editor empowers you to create professionally-designed transactional emails.
Rich-text email editor
Create plain text emails with the formatting capabilities of HTML. Add links, images, bullet points and style text with ease.
Send surveys
Understand your customers and users on a deeper level and gain valuable insights to help you improve your product and customer experience with surveys.
Control your account
User management
Invite your team members to collaborate on projects by assigning roles and granting permissions.
File manager
Streamline your workflow by organizing and keeping all your files in one place in the cloud.
Multiple domains
Use multiple domains to manage different brands or products with one MailerSend account.
Dedicated IP
Take control of your sending reputation with your own dedicated IP address and optimize your sendings for improved deliverability.
MailerSend iOS app
Access email activity, domain settings, and analytics on the go with MailerSend iOS app.
Start split testing your emails now
Use our email API to start sending emails from your apps. Try it for free for up to 100 emails with a trial domain then upgrade to a Hobby plan to get up to 3,000 emails/month.