Seald also offers to install extensions allowing Seald to be used directly in compatible communication tools. As of now, only the extension for Microsoft Outlook is available, and enables its users to:
- encrypt the body of an email (which will be treated as an attachment) and attachments with a single click;
- decrypting emails when they are opened in the Microsoft Outlook interface in a transparent way.
This extension is available on Windows 7 and above for the following Microsoft Outlook versions:
- Microsoft Outlook 2010 ;
- Microsoft Outlook 2013;
- Microsoft Outlook 2016;
- Microsoft Outlook 2019.