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

2026 = is already off to a fast start. This month we've got an under-the-hood impr= ovement that helps your emails land where they belong, a spotlight on a dev= eloper 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 ab= out them. Gmail and Yahoo require working list-unsubscribe headers for broa= dcast mail=E2=80=94and 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 B= roadcast emails stay compliant with the latest requirements from major emai= l providers. The update includes smarter one-click unsubscribe handling tha= t keeps things seamless for people who want to opt out.

Read the full brea= kdown on how it works and why it matters for your sender reputation.

Customer spotlight

This = month we're featuring the founder of E= mailSnapshot, 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 cur= ious 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 manageme= nt, even tried sales for a while, and now run product management for a cybe= r security startup. But when not busy at work, I spend my free time buildin= g web and mobile apps for my portfolio company LaBounty Labs.

How has Postmark helped you?

Postm= ark helps me quickly get ideas off the ground to test MVPs and see what wor= ks and what doesn't. More specifically, using Postmark's Inbound capability= helped me get the initial prototype of EmailSnapshot.com up and running wi= thout 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 Inbou= nd 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 no= t months.

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

Sendi= ng and receiving emails can get more complicated than you might think, so d= on't waste time messing with email infrastructure, use something simple lik= e 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 fin= ds from around the web

Is that AI assistant safe to run?

Clawd= bot (now rebranded as Moltbot after a trademark nudge from Anthropic) is ev= erywhere in AI circles right now. But, researchers are finding hundreds of = exposed instances leaking API keys and credentials. SOCRadar breaks down w= hat 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 r= efreshingly honest takes.

"Agent Psychosis: Are We Going Insane?"

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

Meme of the month

Newsletter complete. See you in February!<= /p>

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.