Postmark supports Tailwind CSS

Postmark is a transactional email API built for developers. If your app sends password resets, magic links, welcome emails, invoices, or notifications, Postmark delivers them fast (typically within seconds) with consistently high inbox placement and no shared infrastructure with marketing or bulk senders.

Integration is straightforward: a REST API, SMTP, and official libraries for Ruby, Python, Node.js, PHP, Go, Java, .NET, and many more. Postmark fits into any stack and you can be sending in minutes. The details that determine whether email reaches the inbox - IP reputation management, feedback loop processing, blocklist monitoring, SPF, DKIM, and DMARC configuration - are handled for you.

Transactional and broadcast email run on completely separate Message Streams. A marketing campaign can't affect the deliverability of a time-sensitive password reset. Every sending account is manually reviewed before it can send, which keeps the shared IP pools clean and deliverability strong by default. No dedicated IP required, no minimum volume.

Postmark has been purpose-built for transactional email since 2010. It's the right choice when reliable email delivery is part of your application's core functionality.

Tailwind CSS users can get 20% off any Postmark plan for 3 months with code POSTMARKLOVESTAILWIND.