What is Postbox used for?

Postbox is a desktop email client for macOS and Windows with a Quick Bar, filters, tabs and theme customization, now owned by eM Client. It is a good fit for power users processing high email volume and customizing the layout of a desktop mail client.

How much does Postbox cost?

Postbox is a paid product with no free plan.

Is Postbox open source?

No. Postbox is proprietary (closed-source) software. Open-source alternatives to Postbox include Mailspring and Thunderbird.

What are some alternatives to Postbox?

Postbox competes with Microsoft Outlook, Mailbird and eM Client. For open-source options, see Enlisted's ranked list of open-source Postbox alternatives.

Postbox: features, pricing and alternatives

About Postbox

Postbox is a desktop email application for macOS and Windows aimed at busy professionals. It brings multiple accounts into one place and emphasizes fast search, easy organization and a native-feeling interface rather than a web-style design.

Notable features include a Quick Bar for moving messages and switching folders by keyboard, extensive keyboard shortcuts, filters and rules, swipe actions on macOS, composition tools, and a theme editor. Users can show or hide panels, use vertical or horizontal views, and organize folders in a favorites bar or tabs.

The vendor's site states that Postbox has been acquired by eM Client. It remains a commercial desktop product, suited to power users who want deep customization from a traditional email client.

Key features

Quick Bar for keyboard-driven email actions
Filters, rules and keyboard shortcuts
Favorites bar and tabs for folders
Theme editor for custom appearance
Fast search across accounts
Composition tools for writing

Good fit for

→Power users processing high email volume
→Customizing the layout of a desktop mail client

Tags: email-client; desktop; macos; windows; keyboard-shortcuts; customization

Postbox: questions and answers

What is Postbox used for?: Postbox is a desktop email client for macOS and Windows with a Quick Bar, filters, tabs and theme customization, now owned by eM Client. It is a good fit for power users processing high email volume and customizing the layout of a desktop mail client.
How much does Postbox cost?: Postbox is a paid product with no free plan.
Is Postbox open source?: No. Postbox is proprietary (closed-source) software. Open-source alternatives to Postbox include Mailspring and Thunderbird.
What are some alternatives to Postbox?: Postbox competes with Microsoft Outlook, Mailbird and eM Client. For open-source options, see Enlisted's ranked list of open-source Postbox alternatives.