Postmark

Founded by Jason VandeBoom in 2010

Send transactional and marketing emails reliably via API or SMTP

Cost

Free Trial

Rating

★ People love it

Time to value

Quick Setup (< 1 hour)

You can use Postmark to send transactional and marketing emails from your application via API or SMTP. It separates transactional emails (like password resets and notifications) from promotional ones using different sending infrastructures to protect deliverability. You can track email opens, monitor delivery status, and integrate with most programming languages including Node.js, Python, Ruby, PHP, and .NET. It's designed for developers who need fast, reliable email delivery with detailed logs and analytics.

What Postmark does

Send transactional emails via REST API with a few lines of codeConfigure SMTP settings in existing applications to route through PostmarkSet up separate message streams for marketing vs transactional emailsTrack email open rates and click-through eventsView detailed delivery logs for individual emailsAuthenticate sending domains with DKIM and SPF recordsMigrate from another email service using provided migration guidesSend bulk emails to mailing lists via the APISeparates transactional and marketing emails into distinct sending infrastructuresAPI libraries for most major programming languages including Python, Ruby, PHP, Node.js, and .NETDetailed email activity logs with delivery status and timestampsOpen and click tracking on emailsVets all new senders to prevent spam and protect deliverabilityNo extra charge for customer support accessFast delivery times - emails typically arrive within secondsSMTP and API sending options