Microsoft Dynamics CRM 2011 and Office365, and Email Router Settings | PowerObjects
How to install Dynamics CRM email router on an Azure virtual machine - Joe Gill
Gustaf's Microsoft Dynamics CRM Blog: Sending emails from a Queue with the email router
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Email Router Fails to Send E-mail from Dynamics due to Permissions
Where has my option “Allow e-mail router to use my credentials to send e-mail on my behalf” gone is CRM 2013? - Debajit's Power Apps & Dynamics 365 Blog
How to configure a Server Side Setup for Email Router in Microsoft Dynamics CRM - RSM Technology Blog