We currently have a SharePoint 2010 with a list that can receive e-mails from anyone that has a domain account/e-mail. However, we started to move some users to office 365, and even though there is a federated server, the user is not able to send the e-mail to the SharePoint list.
The question is: Is it possible to only allow the company users (including office 365 users) to send e-mails to the list but block everyone else?
Thank You for reading.