Exchange 2013 CU 19 - Transport Service Issue

We decided to upgrade to Exchange 2013 CU 19 from our Exchange 2010 Environment and introduced 1st Exchange 2013 C19 into the environment. However , emails are not flowing between our two environments [ i.e. between exchange 2010 and 2013]. OWA 2013 will say you dont have permission to perform this action , when test mailbox user on exchange 2013 mailbox database tries to send an email.

[ Exchange 2010 version is SP3 Rollup 9 and Exchange 2013 version is CU 19]

Exchange 2013 is multirole server and having issues with its transport service and it wont start. Attempt to restart it also results in failure.



We see this event EVENT 16023.

Microsoft Exchange couldn’t start transport agents. The Microsoft Exchange Transport service will be stopped. Exception details: Failed to create type ‘Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.TransportRuleAgentFactory’ from assembly ‘C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\agents\Rule\Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.dll’ due to error ‘Agent Transport Rule couldn’t load the rule collection.’. : Microsoft.Exchange.Data.ExchangeConfigurationException: Failed to create type ‘Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.TransportRuleAgentFactory’ from assembly ‘C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\agents\Rule\Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.dll’ due to error ‘Agent Transport Rule couldn’t load the rule collection.’. —> Microsoft.Exchange.Data.ExchangeConfigurationException: Agent Transport Rule couldn’t load the rule collection.
at Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.TransportRuleAgentFactory..ctor()
— End of inner exception stack trace —
at Microsoft.Exchange.Data.Transport.Internal.MExRuntime.FactoryTable.CreateAgentFactory(AgentInfo agentInfo)
at Microsoft.Exchange.Data.Transport.Internal.MExRuntime.FactoryTable..ctor(IEnumerable agents, FactoryInitializer factoryInitializer)
at Microsoft.Exchange.Data.Transport.Internal.MExRuntime.RuntimeSettings..ctor(MExConfiguration config, String agentGroup, FactoryInitializer factoryInitializer)
at Microsoft.Exchange.Data.Transport.Internal.MExRuntime.MExRuntime.Initialize(String configFile, String agentGroup, ProcessTransportRole processTransportRole, String installPath, FactoryInitializer factoryInitializer)
at Microsoft.Exchange.Transport.Categorizer.MExEvents.Initialize(String configFilePath)
at Microsoft.Exchange.Transport.Components.CategorizerMExRuntimeLoader.Load()

Additional error in Exchange logs

EVENT ID 1052 Source MSEXCHANGE Extensibility

Failed to create agent factory for the agent 'Transport Rule Agent' with error 'Failed to create type 'Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.TransportRuleAgentFactory' from assembly 'C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\agents\Rule\Microsoft.Exchange.MessagingPolicies.TransportRuleAgent.dll' due to error 'Agent Transport Rule couldn't load the rule collection.'.'. Please verify the corresponding transport agent assembly and dependencies with correct version are installed.

Can you please advise ?




Can you please advise ?

Thanks very much,