The following errors may occur when using the Microsoft Dynamics CRM Email Router with Office 365 Exchange Online:
"The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account."
"The access credentials that you have specified have insufficient delegate permissions to send the e-mail message. Contact your Microsoft Exchange administrator to grant the required Permissions."
"The user account which was used to submit this request does not have the right to send mail on behalf of the specified sending account."
"The access credentials that you have specified have insufficient delegate permissions to send the e-mail message. Contact your Microsoft Exchange administrator to grant the required Permissions."