Migration Guides

Made the switch to @postmarkapp today. The customer service and delivery rates are awesome, but the thing I love is EVERYTHING IS YELLOW!

Wow, even after two years of using Postmark I’m still surprised by how much you value your customers!

Sendgrid was giving us countless problems so we switched over to Postmark and went problem-free!

“Postmark really impressed us with their focus on transactional emails, instead of just broadcasting.”

Personal experience of working with a few other providers recently is that @postmarkapp definitely seems to have the upper hand on speed.

dunno why but I'm using Resend and the spin up time to actually send an email is diabolical. Sometimes users are waiting 1 min + for a confirmation email. I dunno if it's just free tier things or because I'm based in Canada but I'm not the biggest fan.

Easy to set up. Great API. Rapid mail delivery and no spam issues. We moved from Mandrill because of terrible deliverability and am pleased to say it’s been well worthwhile....we’ve even saved money. Thanks Postmark Team….you rock!!

OMG! @postmarkapp is a chef's kiss. Mandrill or SendGrid is never again.

Avoid for Production - Zero warning, permanent bans for technical testing.

I spent weeks integrating Resend only to have my account permanently suspended after a single deliverability audit. No warning, no 'sandbox' mode notification, just a total block on a legitimate e-commerce domain. Their 'support' is non-existent when you actually need a human to review a technical edge case. Don't build your business on a foundation that can disappear without a conversation. Extremely disappointing for a supposedly developer-first platform.