System requirements - GFI MailEssentials


The minimum hardware requirements for GFI MailEssentials are:

  • Processor: 2GHz with multiple cores
  • Memory (RAM): 2GB dedicated for GFI MailEssentials
  • Disk space: 10GB dedicated for GFI MailEssentials

Note that the above requirements depend on a range of factors including email volume and number of Anti Virus engines enabled.


  • Any version of Microsoft Windows Server (64-bit) from 2008 R2 onwards. (excluding Server Core)
  • Microsoft IIS SMTP service or Microsoft Exchange Server 2010/2013/2016
  • Microsoft IIS World Wide Web service
  • Microsoft Messaging Queuing Service (MSMQ)
  • Microsoft .NET Framework 4/4.5
  • ASP.NET & Windows Authentication role services when installing on Windows Server 2008 R2 onwards
  • Microsoft SQL Server/Microsoft SQL Server Express (free) is suggested for the Reporting engine database for installs with more than 100 mailboxes.


  • McAfee and VIPRE AVs have been discontinued.
  • Microsoft Exchange 2007 is no longer supported.
  • Microsoft Windows 2008 is no longer supported.


Click here for a full list of system requirements

Click here for SpamTag system requirements.