The 3.5 version of gpg4o - GPG for Outlook is provided as a free download on our website. Gpg4o - GPG for Outlook lies within Communication Tools, more precisely E-mail Tools. This software was originally produced by Giegerich und Partner GmbH. The most popular versions of the program 3.5, 3.3 and 3.1.
From the developer:
gpg4o (GPG for Outlook) helps you send confidential email in Microsoft Outlook 2010/2013/2016 safely. This application supports various types of mail accounts such as Microsoft Exchange, POP3, IMAP4, Exchange Active Sync (e.g. Outlook.com, formely known as live.com or Hotmail.com).
You may want to check out more software, such as Export Live Mail Contacts to Outlook, Windows Live Mail Export Contacts to Outlook or Outlook Express Backup Genie, which might be similar to gpg4o - GPG for Outlook.