Postmark: Fast, Reliable Email Delivery Service | SMTP | API

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Just tried out @postmarkapp and boy is it blazing fast. Transactional emails that previously took 5-10s to reach my inbox with Mailgun are now hitting my inbox in less than 1s.11/10 would recommend.
Ripped out Sendgrid and moved Growform's transactional emails over to @postmarkapp today.
Their app is ridiculously easy to use, they have a clear focus on deliverability and great docs. Highly recommend so far.
I’ve been so impressed with @postmarkapp since migrating almost all Smart Order Notifications transactional email to them last month. The peace of mind is amazing and the responsiveness of their support team is next level.
Been a postmark customer for a veeeerry long time. Stability and deliverability is so good I sometimes go months without thinking about it… just works(tm).
I have nothing but huge love for Postmark, one of my heroes in the bootstrapped world.
Spent the weekend shifting @SeshMysteries across from SendGrid to @postmarkapp and couldn't be happier with the experience so far ✨📩
Sendgrid = FrustrationPostmark = 💌
I just implemented @postmarkapp in like 5 minutes. Email received in Yahoo in seconds. I am sold.
I’ve had great success with @postmarkapp and the API is solid as gold.
Just tried out @postmarkapp and boy is it blazing fast. Transactional emails that previously took 5-10s to reach my inbox with Mailgun are now hitting my inbox in less than 1s.11/10 would recommend.
Ripped out Sendgrid and moved Growform's transactional emails over to @postmarkapp today.
Their app is ridiculously easy to use, they have a clear focus on deliverability and great docs. Highly recommend so far.
I’ve been so impressed with @postmarkapp since migrating almost all Smart Order Notifications transactional email to them last month. The peace of mind is amazing and the responsiveness of their support team is next level.
Been a postmark customer for a veeeerry long time. Stability and deliverability is so good I sometimes go months without thinking about it… just works(tm).
I have nothing but huge love for Postmark, one of my heroes in the bootstrapped world.
Spent the weekend shifting @SeshMysteries across from SendGrid to @postmarkapp and couldn't be happier with the experience so far ✨📩
Sendgrid = FrustrationPostmark = 💌
I just implemented @postmarkapp in like 5 minutes. Email received in Yahoo in seconds. I am sold.
I’ve had great success with @postmarkapp and the API is solid as gold.
Stop worrying if your emails made it to the inbox, and get back to focusing on what matters—building great products.
Since 2010, we've delivered billions of emails for companies of all sizes
With API libraries for pretty much every programming language you can think of, Postmark fits seamlessly into any stack.
Check out our handy migration guides
You might say that Postmark has serious street cred with inbox providers. That's because we vet every new sender carefully, help you follow deliverability best practices, and never, ever let spammers use Postmark.
Our API and SMTP service help you send your emails with ease, whether that's password reset emails, notifications, newsletters, or anything in between. To protect the deliverability of your crucial transactional emails—and make sure they arrive lightning fast—we route promotional messages like newsletters through a parallel but separate sending infrastructure.
Learn more about Message Streams →
Customer feedback gathered over the past 60 days.
It's not just our email delivery that's fast and reliable. Our knowledgeable customer success team is here for you should you need us (and we never make you pay extra for premium support.)