A simple OpenPGP encryption plugin for Outlook 2010 and 2013.
Outlook Privacy Plugin is a security extension for Outlook. It enables Outlook to send and receive email messages that are encrypted and/or signed with the OpenPGP standard.
See the releases page for downloads and release notes.
Download the latest release from the the releases page.
Install gpg4win and import or create keys as needed. Verify you can see all expected keys from the gpg4win key manager software.
Install v4.5 of the Microsoft.NET Framework. The download can be found via Google Search (the link changes).
This will prevent an error about certificates during installation.
After downloading the zip file, right-click → Properties, at the bottom click the "Unlock" button if there is one. Then unzip the file and install. Make sure the install files are located on a local drive and not a network drive.
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Microsoft Outlook 2010 and 2013
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Support for both 32bit & 64bit versions of Office
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Encrypt and decrypt email using OpenPGP standard
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Supports encrypted attachments
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Supports multiple recipients
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Decrypts PGP-MIME
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Decrypts OpenPGP blocks in HTML email
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Multiple email accounts (based on sender/receiver email)