Quick answer
When was Postmark launched?
Answer
About Postmark
Postmark launched in 2010.
Postmark launched in 2010, approximately 16 years ago. The product is currently active in the Developer Tools category on Startup Spotlight.
Source
This answer is drawn from the Postmark listing on Startup Spotlight, last updated May 25, 2026. For the full profile, see the Postmark listing.
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