Hey there 👋,

2026 is already off to a fast start. This month we've got an under-the-hood improvement that helps your emails land where they belong, a spotlight on a developer building cool things with Postmark, and some reads (+ listens) that caught our attention. Let's get into it.

Shipped

Smarter unsubscribe links for better deliverability

Here's the thing about unsubscribe links: email providers really, really care about them. Gmail and Yahoo require working list-unsubscribe headers for broadcast mail—and if your emails don't have them, they might not reach the inbox at all.

We've improved how Postmark handles unsubscribe links to make sure your opt-in Broadcast emails stay compliant with the latest requirements from major email providers. The update includes smarter one-click unsubscribe handling that keeps things seamless for people who want to opt out.

Read the full breakdown on how it works and why it matters for your sender reputation.

Customer spotlight

This month we're featuring the founder of EmailSnapshot, who used Postmark's Inbound capability to go from idea to paying customers in just a few weeks. Here's their story.

How would you describe yourself in one sentence?

A curious learner who loves building products.

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

I've got a background in software engineering, made the jump to product management, even tried sales for a while, and now run product management for a cyber security startup. But when not busy at work, I spend my free time building web and mobile apps for my portfolio company LaBounty Labs.

How has Postmark helped you?

Postmark helps me quickly get ideas off the ground to test MVPs and see what works and what doesn't. More specifically, using Postmark's Inbound capability helped me get the initial prototype of EmailSnapshot.com up and running without the complicated setup required at other services.

How are you using Postmark on your projects today?

I've been using Postmark for outbound emails like password resets and onboarding email flows for years. But EmailSnapshot is the first time using the Inbound capability via webhooks to get JSON formatted emails that work perfectly with Rails' ActionMailbox. This helped me go from idea to production in a few days, onboard my first beta users, and get paying customers in weeks not months.

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

Sending and receiving emails can get more complicated than you might think, so don't waste time messing with email infrastructure, use something simple like Postmark that just works the first time.

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

Our latest, greatest finds from around the web

Is that AI assistant safe to run?

Clawdbot (now rebranded as Moltbot after a trademark nudge from Anthropic) is everywhere in AI circles right now. But, researchers are finding hundreds of exposed instances leaking API keys and credentials. SOCRadar breaks down what you need to know before running it.

Podcast: Engineering rigor in the LLM age

Will "vibe coding" become the norm, or can LLMs actually help build more robust systems? The Oxide and Friends crew tackles the big questions about AI and software engineering with some refreshingly honest takes.

"Agent Psychosis: Are We Going Insane?"

Armin Ronacher (creator of Flask) looks at the growing complexity of agentic coding systems and asks whether we're building tools or participating in a "mad art project." A thought-provoking read for anyone navigating the AI tooling landscape.

Meme of the month

Newsletter complete. See you in February!

Keep building amazing things,

The Postmark Team

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