Good security is layered and each layer does a job the others can't. Scoping a token to a Server limits what it reaches. Rotating a token limits how long it lasts. Neither can say anything about where a request came from.We've been hard at work to ship a new layer of protection that can.IP Allowlist...

About a year ago, we introduced something experimental from Postmark Labs: an MCP server that let an AI assistant send email through Postmark. It shipped with exactly one useful tool, sendEmail, plus three supporting ones (four total). You gave it a recipient, a subject, and a body, and it sent. We ...

Bulk email has a reputation problem, but users often misplace the blame. Recipients associate bulk email with spam, inbox clutter, and irrelevant marketing campaigns. Senders associate it with poor deliverability, complicated orchestration, and the constant fear of landing in spam folders.If you han...