"Love Postmark! It's our go-to tool for transactional in-app email"

"Huge thanks to Postmark for prioritizing fast, reliable transactional email delivery—MailTock is here to help ensure nothing slips through the cracks."

"Postmark is reliable and fast, ensuring that our emails are delivered instantly and without fail. I"

"All transactional and broadcast messages from blogstatic go through Postmark. An incredible team with an incredible group of humans behind it."

"Postmark is the most reliable email sending tool, hands down. Use it with all of my products."

"We use Postmark to communicate with our customers."

"We use Postmark not only for our emails, but also to power Ply's built-in dynamic email capabilities. It's reliable, well documented and most of all - comes with awesome human support."

"Postmark handles all our critical user communications. We couldn't do without it."

"Once you get familiar with Postmark's layouts and templates, the service is great for quickly creating email templates and sending them out using their simple API. The UI is simple and intuitive."

"Postmark has been easy and very affordable to use, largely thanks to their step-by-step guides and great support."

"Built using the Postmark incoming email API. Love using Postmark!"

"I use postmark to send emails on behalf of my users."