CRM 2013: Email Router: The message exceeds maximum supported size

If your email router does not process any emails but your inbox from Email Provider works just fine!?! Check event logs where Email Router is installed. You might see many repeated errors similar to mentioned error here below:

#27938 – An error occurred while checking for email messages to process in mailbox service@gmail.com. Microsoft.Crm.Tools.Email.Providers.EmailException: Error: The message exceeds the maximum supported size.
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.LogEwsResponseErrorWarning(String message, ResponseClassType responseClassType)
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.RetrieveMessage(ArrayList ids, Int32 index, ServiceLogger serviceLogger)
at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.RetrieveNextMessageInternal()
at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.RetrieveNextMessage()
at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.Run()

Check your inbox for the emails with attachments. Find emails with more than expected attachments size per email, take backup (if required) and delete them. Your Email Router should work just fine once this is done!

In my case an email with 100+ MB attachment size was creating an issue.

Happy Troubleshooting!!

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CRM 2011 Error: This record will not be processed by the e-mail router until its primary e-mail address has been approved by the system administrator

Error shown when managing the users with a yellow bar and red text as shown below:

“This record will not be processed by the e-mail router until its primary e-mail address has been approved by the system administrator”

A new feature introduced in CRM 2011; that the system administrator has to approve a change of the users’ primary e-mail address.

Resolution: Just click the “Approve E-mail” button in the User ribbon.