Postmark is a transactional email API service that helps developers send reliable application emails with high deliverability and comprehensive tracking.

Postmark offers tiered email API plans starting at 10,000 emails per month with overage-based pricing. The Basic plan ($15/month) includes core sending and 45-day message retention, Pro ($16.50/month) adds dedicated IP support and advanced analytics, and Platform ($18/month) includes unlimited Servers and team seats. The service provides SMTP and API access, 100% uptime SLA, and no setup or per-call fees. Postmark doesn't charge for webhooks or data transfer.
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Email API for reliable transactional email delivery
Founded
G2 Rating
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