SharePoint 2013 workflow email to distribution list
I found out after contacting Microsoft Support that you are not able to use the "Send Email" action in SharePoint 2013 Designer to send the email to a distribution list (group type of distribution or security). In order to send an email in a SharePoint workflow to a distribution list (email@example.com), you have to use a SharePoint 2010 workflow.
I was informed that SharePoint 2013 workflows can only send emails to organization users.
Please allow the ability to send to a distribution list within the GAL/org. This is a very common request so changes in recipients do not require a re-publish of the workflow but adding/removing members in a distribution list.
Norman Bercasio commented
@Hnin, I added the group email under "Members Group" and still won't work when using WF 2013
The work around is adding group email address under one of the SharePoint groups. It worked for me.
Neville Collins commented
Agreed, this is causing real issues that Microsoft has decided to remove this feature, which is preventing us from moving to SharePoint 2013 workflows. Would be good to know if Microsoft is looking to address this, or expect their customers just to manage and accept it.