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IT Product Company

LeanMail

Add-on modules for Microsoft Outlook that help people and teams file, prioritise and share email

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  • Founded 2007
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About LeanMail

LeanMail sells a suite of five modules that plug into Microsoft Outlook and change how users sort and act on their mail. The company is listed in Denmark and builds for office workers who feel buried by their inbox, as well as teams sharing one mailbox.

What LeanMail does

  • InstantArchive: files and finds email through one smart folder plus tags, instead of many folders or a broad search.
  • LeanMail Plan: turns Outlook into a task list, with notes and deadlines added straight onto messages.
  • Shared Inbox: shows a team who is handling each message and when, so key customers get answers first.
  • Inbox480: moves non-essential mail out of the main inbox using a rules-based method rather than an algorithm.

Customers and markets

LeanMail says its products suit every type of Outlook user, and it lists Fortune 500 companies among its clients.

Key facts

  • Based in: Denmark
  • Platform: Microsoft Outlook
  • Data handling: the company states its tools never touch user data

Profile written by TrustList from the business's own published information, Sep 2026.

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