You may wish to test that your stakeholders will properly receive their notifications.
You may do this using the Test button on the Notification E-mail Configuration screen. When the Test button is pressed a screen comes up for you to enter an e-mail address, enter the e-mail address of the stakeholder.
You should receive a message a test e-mail has been sent successfully, please check. Have the stakeholder verify that they have received the test e-mail. When they receive it you know that the notifications will be received successfully.