Encryptomatic OutDisk 4.1.2 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions of the tool 4.1 and 1.0.
The program lies within Office Tools, more precisely Document management. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This tool was originally produced by Encryptomatic, LLC.
From the developer:
OutDisk is an FTP utility designed for email users who need to share large files through email. It integrates with the Windows Desktop, and includes an add-in for Microsoft Outlook users. After OutDisk is configured, using it can be as simple as sending a regular email.
You may want to check out more software, such as OutDisk FTP, OutDisk for Windows with Outlook add-in or Encryptomatic Open PGP, which might be similar to Encryptomatic OutDisk.