To determine whether you are experiencing this issue, check the Application event log for an Event ID 4999 that resembles the following:
Source: MSExchange Common
Event ID: 4999
Task Category: General
Watson report about to be sent for process id: 2964, with parameters: E12IIS, DART-buddy-DBG-AMD64, 15.01.0404.000,, 5904, 15.01.0403.000.
exData=|exHResult=-2147024894|exStacktrace= at Microsoft.Exchange.MessagingPolicies.Rules.TransportRulesErrorHandler..cctor()|exTargetSite=|
, Version=18.104.22.168, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.exData=|exHResult=-2147024894|exStacktrace= at Microsoft.Exchange.MessagingPolicies.Rules.TransportRulesErrorHandler..cctor()|exTargetSite=|exSource=Microsoft.Exchange.MessagingPolicies.Rules|exMessage=Could not load file or assembly 'Microsoft.Filtering, Version=22.214.171.124, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
If you have any 4999 events that resemble this and the 4999 event includes the following text in the Description field (also highlighted in this 4999 event for clarity), then you are experiencing the symptoms described in this article:
Additionally, this issue occurs when another rule experiences an error during evaluation. In this case, the TransportRulesErrorHandler class is called and the EdgeTransport process crashes.
Article ID: 3150036 - Last Review: Jun 21, 2016 - Revision: 1