SharePoint 2013 Workflows that attempt to send an email to a SharePoint group can fail with an Access Denied error if the membership of the SharePoint group is not set to Everyone.
Workflow Error Message
Activity in progress
Retrying last request. Next attempt scheduled in less than one minute. Details of last request: HTTP InternalServerError to https://domain.com/sites/mysite/listProjects/_api/sp.utilities.utility.SendEmail Correlation Id: e72f38d3-cca0-78da-8d0c-90ef358c8285 Instance Id: a57780c5-fadb-4ef1-a7eb-0ee56948248c
Unable to send to a recipient
- Check whether the To or CC SharePoint group having read access to the list.
- Allow everybody to see the members of the SharePoint group.