Crossware Mail Signature has the following requirements:
SQL Server Express 2008 R2
The supported platforms for MS SQL Express 2008 R2 are Windows Server 2008 and above
The IIS configuration site require a server running IIS7 (with ASP.NET 4.0) and above.
The Exchange Transport Agent is currently supported on Exchange 2016, Exchange 2013 and 2010.
Crossware Mail Signature is client independent. The application has been tested with the following clients:
iPhone (iOS 6)
Android Native email client(4.0)
Note: For Outlook clients you must use a Group Policy to force outlook to send all messages as HTML.
(RTF emails are currently not supported)