Real-time email performance data
Test your email deliverability and find out where your messages are landing
Make sure your messages are hitting the inbox and not the spam folder or promotions tab.
Try it Free. No credit card required.


Robb LeCount, VP of Operations, The Rich Dad Company

Customers.ai performs much better than our old tools. We struggled at first with 14-15% email open rates and it took a lot of effort to get to 32%. With Customers.ai we’re seeing 65-85% open rates.
Why do you need an email deliverability audit?

Advanced Email Analytics
Traditional email providers can’t tell you if your emails were delivered to the inbox, spam folder, or promotions tab.

Sophisticated Spam Filters
Advanced anti-spam algorithms make inbox delivery a moving target. You need to know where your emails are landing in real time.

Unbiased Email Testing
Internal tests won’t give you true deliverability results. Evaluate your email performance by testing with a diverse set of inboxes.
Get your email deliverability score in three simple steps!
Step 1.
Connect your email to Customers.ai
Sign up for free and connect your email. We integrate directly with Gmail, Microsoft, SendGrid, Mailchimp, Sendlane, Klaviyo, and more.


Step 2.
Start your email deliverability test
We run your email through our seed list to understand where your emails will land and get out ahead of any deliverability issues.
Step 3.
Get your email deliverability score
Our inbox placement test gives you real-time performance data. See how many emails hit the inbox and understand where you can improve.

Be our next email marketing success story.
2x
email open rates

Rich Dad Company
5.5x
email revenue

Agile Off Road
25x
return on marketing spend

Travel Resorts of America
Improve deliverability and get your message into the hands of your audience with Customers.ai’s proprietary email technology.
Step 1
Learn who’s visiting your site with X-ray

Step 2
Segment visitors and create highly-targeted email campaigns

Step 3
Use AI to personalize emails to each recipient for more opens

Step 4
Ensure emails hit the inbox with our proprietary email deliverability technology

Step 5
Turn your prospects into buyers with CRM integrations

Reach more inboxes with our email marketing toolkit

Free Webinar: 2023 Email Deliverability Hacks – July [On-Demand]
Free On-demand webinar! Hosted by Customers.ai CEO Larry Kim Email Deliverability: How to 5x Email Performance Our clients have used AI to improve email deliverability and leverage video assets, leading

Email Deliverability Tools: Top 7 for 2024
It’s easier than ever to send emails to thousands of people. There are dozens of tools that let you send hundreds or thousands of emails at once. Getting those emails

Boosting Email Deliverability: 5 Strategies for DTC Marketers
The success of email marketing hinges on a fundamental metric: email deliverability. Studies reveal that nearly 20% of emails never reach their intended recipients. This is pretty troubling for DTC