Hey t= here =F0=9F=91=8B,

We ha= ve a big update for Python developers: we now have an official Python SDK. = We've also got a customer who's sending tens of thousands of transactional = emails through signup forms, and some reads that caught our attention. Let'= s get into it.

Shipped

The official Postmark Python SDK is here

Pytho= n developers, this one's for you. We've released an official Python SDK tha= t's fully async, built on modern Python patterns, and covers the entire Pos= tmark API. Send emails, manage templates, track bounces, and work with webh= ooks! All with clean, type-hinted code that plays nicely with your existing= async workflows.

Insta= ll it with pip install postmark-python= and check out the GitHub repo or PyPI page to get started.

We al= so wrote a deep dive on sending mis= sion-critical emails in Python, covering when to use SMTP vs. API, erro= r handling, and best practices for production.

Customer spotlight

This = month we're featuring Brent, the builder behind Grasshopper Signup: an ad-free, AI-assisted signup form= tool. With magic link authentication, automatic reminders, and thousands o= f creator-to-respondent messages, email is at the heart of everything Grass= hopper does.

How would you describe yourself in one sentence?

Build= er.

Can you tell us a little bit about your experience and the work= you do?

I bui= lt a product called Grasshopper Signup to provide ad-free, AI assisted sign= up forms. We send a lot of emails!

How has Postmark helped you?

From = day 1 I started with Postmark. Every form submission sends a confirmation t= o the creator and respondent, and I use magic links for most authentication= , the service also provide email and SMS reminders, so email is critical to= the service.

How are you using Postmark on your projects today?

10s o= f thousands of transactional emails, customer invites, lots of messages fro= m creators to respondents, thousands of automatic reminders.

What advice would you give other folks in your role about imple= menting and managing their email?

Find = a flexible provider that is easy to use and has great deliverability. You j= ust don't want to be wondering if your emails are getting through.

Built something cool with Postmark lately?
We'd love to feature you in our Customer Spotlight!

ActiveCampaign AI Lab

Our f= riends at ActiveCampaign (Postmark's parent company) just launched AI Lab: a collection = of free AI tools and resources for marketers. It includes a subject line ge= nerator/optimizer, original research on autonomous marketing, and real work= flows from practitioners who've figured out how to integrate AI into their = day-to-day. Worth a look if you're thinking about how AI fits into your mar= keting stack.

Our latest, greatest fin= ds from around the web

Structured-Prompt-Driven Development (SPDD)

Thoug= htworks' internal IT teams developed a methodology that treats prompts as f= irst-class artifacts that are version controlled, reviewed, and improved ov= er time. Martin Fowler helped shape the article. The core idea: when realit= y diverges from the output, fix the prompt first, then update the code. Read more

Pi: A lightweight coding agent built for control

Mario= Zechner introduces Pi, a minimal coding agent designed to give developers = total control over their environment. He warns against what he calls "the w= orld of slop", the uncontrolled proliferation of AI-generated code that lea= ds to technical debt. A call to slow down and keep humans as the gatekeeper= s of quality. Watch on YouTube

DeepSeek V4 Pro benchmarks

DeepS= eek released V4 Pro and V4 Flash 1.6T and 284B parameter models with 1M tok= en context windows. V4 Pro is now the #2 open-weights reasoning model on th= e Artificial Analysis Intelligence Index. Worth tracking if you're evaluati= ng models for your stack. See the benchmarks

Meme of the month

Newsletter complete. See you next month!

Keep building amazing things,

The Postmark Team

P.S. Want to share your project? If you've built something with Postm= ark that solves a real problem for real people, we want to feature you. Tell us about it or just reply to this email.