You receive the following error when accessing the GFI MailEssentials configuration or quarantine:
Error 404: Not Found.
The following event is logged:
Event Type: Warning
Event Source: ASP.NET 4.0.30319.0
Event Category: Web Event
Event ID: 1309
- GFI MailEssentials
- All supported environments
GFI MailEssentials is set up to use an unsupported version of .NET Framework in Internet Information Services (IIS).
- Open IIS.
- Navigate to Application Pools.
- On the right pane, locate GFI MailEssentials and check the version of .NET that it is set up to use.
- Make sure to set it to use .NET 4.0 or higher.
- Restart IIS and GFI MailEssentials services.