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Postmark

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Read 51 Postmark reviews and testimonials from customers, explore 32 case studies and customer success stories, and watch customer videos to see why companies chose Postmark as their Transactional Email Software

Postmark delivers your transactional email to your customers, on time every time. Your emails are important, get them to the inbox. Trusted by thousands of developers, Postmark is a fast and reliable transactional email service.

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Customer Rating Review Scorebased on 3372 reference ratings
4.7/5.0 (3372)
  • Market Leader 2025 2025
    Winter 2025Market LeaderTransactional Email Software

51Testimonials

  • “Early in the life of our company we were sending email through our own infrastructure. As our growth took off, we needed to scale our servers but didn’t have enough engineering or systems time to develop and scale this really important part of our stack. After a bit of research, we decided to use Postmark until we could build our own email solution. As time went on, we realized we’d rather stick with Postmark than try and reinvent the wheel. This gives us more time to work on features in our core product, while Postmark takes care of everything email related for us.”

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32 Case Studies

  • Podia relies on Postmark for critical emails

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Additional Postmark Information & Resources

Read Postmark Reviews, Testimonials & Customer References from 51 real Postmark customers.

Browse Postmark Case Studies, Customer Success Stories, & Customer References from 32 businesses that use Postmark.