Postbox

Postbox is a power email application for macOS and Windows. The job it does: building software for you when nothing off the shelf fits.

Who is it for? Mostly companies with a specific process to automate. They also list Email, so expect those to show up in the feature set. They are a very small team, 1 to 10 people, which usually shapes who they work with. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

Postbox is based in San Francisco, California and around since 2008. Their site is postbox-inc.com.

Our checklist for this category: portfolio relevance, who owns the code, and how they handle changes. A short pilot with your real data tells you more than any demo.

The facts above come from public company records. The score will come from people like you. Used Postbox? Rate it.