Distribution group cannot send email messages to a mail enabled public folder in an Exchange Server 2013 environment Content provided by Microsoft Applies to: Exchange Server 2013 EnterpriseExchange Server 2013 Standard Edition Select Product Version All Products Symptoms Consider the following scenario:You have the Send As permission on a mail distribution group in a Microsoft Exchange Server 2013 environment that has Cumulative Update 6 installed.You send an email message to a mail enabled public folder from the distribution group.In this scenario, the email message is not delivered to the public folder, and no non-delivery report (NDR) is returned. Additionally, the message tracking log shows that the user is not authorized. Cause This issue occurs because a mail distribution group cannot create items in a mail enabled public folder, unless you change it to a security group. Resolution To resolve this issue, install Cumulative Update 7 for Exchange Server 2013. Status Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. Last Updated: Dec 9, 2014 Did this solve your problem? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.