Hi i love the website and the idea, i have a few thoughts about how you can make it better:
In the home page in the opening banner text replace the image with a screenshot of the dashboard or the product showing all emails delivered
Make the three benefits in the section e.g. 98% accuracy a bit bigger so its easier to read
In the offer plan get rid of the mixed backgrounds for each box and just keep either a white background or a white and paige background, these mixed backgrounds are a bit distracting also increase the font size
The try out the email verifier is a bit confusing because when i put in my emeial i get this "Try our email verifier.
The #1 Email Verifier is being used by most popular brands across the globe.
Enter Email here & verify to see how it works!" it doesn't make sense from a ux perspective
Looks awesome keep going!