Insights

Growing Acquisition Postbox was recently acquired by eM Client Inc, indicating a growth phase and potential integration opportunities with eM Client’s existing customer base and product ecosystem.

Niche Market Focus With a specialized focus on powerful, privacy-conscious email management tools tailored for demanding users, Postbox appeals to professional users seeking secure and feature-rich email solutions.

Product Innovation Postbox regularly updates its features, such as the launch of version 7 and Lab Experiments like Enigmail, demonstrating a commitment to innovation which can attract customers seeking cutting-edge email management.

Budget-Conscious Audience With revenue falling between $0 and 1 million and a small team, Postbox targets small to medium-sized businesses and individual professionals, presenting opportunities to pitch affordable, high-value email solutions.

Privacy as a Priority Postbox emphasizes user privacy by not reading or storing emails or passwords, appealing to security-conscious customers who require trustworthy communication tools, ideal for outreach in privacy-focused sectors.

Similar companies to Postbox

Postbox Tech Stack

Postbox uses 8 technology products and services including Mixpanel, Font Awesome, React, and more. Explore Postbox's tech stack below.

  • Mixpanel
    Analytics
  • Font Awesome
    Font Scripts
  • React
    Javascript Frameworks
  • JSON-LD
    Javascript Frameworks
  • Highlight.js
    Javascript Libraries
  • jQuery
    Javascript Libraries
  • Yii
    Web Frameworks
  • Magnific Popup
    Web Tools And Plugins

Postbox's Email Address Formats

Postbox uses at least 1 format(s):
Postbox Email FormatsExamplePercentage
First@postbox-inc.comJohn@postbox-inc.com
50%
First@postbox-inc.comJohn@postbox-inc.com
50%

Frequently Asked Questions

Where is Postbox's headquarters located?

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Postbox's main headquarters is located at 809 Laurel Street, #999. The company has employees across 3 continents, including AsiaEuropeNorth America.

What is Postbox's phone number?

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You can contact Postbox's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Postbox's official website and social media links?

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Postbox's official website is postbox-inc.com and has social profiles on LinkedIn.

What is Postbox's SIC code NAICS code?

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Postbox's SIC code is 7372 - Prepackaged Software NAICS code is 5112 - Software Publishers.

How many employees does Postbox have currently?

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As of December 2025, Postbox has approximately 6 employees across 3 continents, including AsiaEuropeNorth America. Key team members include Partner: V. H.. Explore Postbox's employee directory with LeadIQ.

What industry does Postbox belong to?

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Postbox operates in the Software Development industry.

What technology does Postbox use?

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Postbox's tech stack includes MixpanelFont AwesomeReactJSON-LDHighlight.jsjQueryYiiMagnific Popup.

What is Postbox's email format?

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Postbox's email format typically follows the pattern of First@postbox-inc.com. Find more Postbox email formats with LeadIQ.

When was Postbox founded?

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Postbox was founded in 2007.

Postbox

Software DevelopmentCalifornia, United States2-10 Employees

Postbox is the power email app that helps you work faster, save time, and get more done. It has the ease of use and simplicity of Apple Mail, but with more power and features to handle the most demanding workloads.

Postbox has all the tools you need to tackle the busy inboxes. With intuitive search views, macros for common actions, fast tagging, and a full suite of keyboard shortcuts, you’ll conquer mountains of messages with speed, simplicity, and ease.

Our pro-class composition tools will help you create more engaging emails in less time. Add pre-canned responses, stylish content blocks, or professionally designed signatures with just a few clicks, or send large files fast through sharable links from Dropbox, OneDrive and Box.

Customize Postbox to work the way you do. Fully control the Postbox interface and feature set, or extend Postbox’s functionality through 3rd-party Labs projects such as OpenPGP encryption and Import & Export Tools.

All of Postbox’s features are presented within a clean, crisp interface that’s drop-dead gorgeous and a delight to use. We also include 24 elegant themes to choose from across light and dark modes.

At Postbox, your privacy is paramount. We do not read or store your emails or passwords, or implement features that invade your privacy, or serve you ads, or share your information with 3rd parties.

Take advantage of our free 30-day trial to experience how Postbox can make your work life easier and more productive.

For macOS and Windows.

Section iconCompany Overview

Headquarters
809 Laurel Street, #999
Phone number
SIC Code
7372 - Prepackaged Software
NAICS Code
5112 - Software Publishers
Founded
2007
Employees
2-10

Section iconFunding & Financials

  • $1M

    Postbox's revenue is estimated to be in the range of $1M

Section iconFunding & Financials

  • $1M

    Postbox's revenue is estimated to be in the range of $1M

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