In Microsoft Exchange Server 2019 or Exchange Server 2016, EdgeTransport.exe crashes because of a stack overflow exception. You may see this event in the application logs:
Log Name: ApplicationSource: Application ErrorDate: DateTimeEvent ID: 1000Task Category: (100)Level: ErrorKeywords: ClassicUser: N/AComputer: ComputerNameDescription:Faulting application name: edgetransport.exe, version: 15.1.1847.3, time stamp: 0x5d5c6650Faulting module name: clr.dll, version: 4.7.3062.0, time stamp: 0x5ab9567cException code: 0xc00000fdFault offset: 0x0000000000004fb4Faulting process id: 0xfcFaulting application start time: 0x01d59a7080bdc2fdFaulting application path: C:\Program Files\Microsoft\Exchange Server\V15\Bin\edgetransport.exeFaulting module path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dllReport Id: ReportIDFaulting package full name:Faulting package-relative application ID: