How to enable "no subject" warning??
MacBook Air
OS X El Capitan, version 10.11.6
processor 1.7 ghz intel core i5
memory 4 gb
MacBook Air, OS X El Capitan (10.11.6)
In Mail you mean? That option doesn't exist. https://www.apple.com/feedback/mail.html
So, there is no way to enable any type of "warning" when I left the "subject line" blank in Entourage?
Entourage is a third party product - you might want to check the Microsoft support site.
You should have mentioned Entourage: not many people are using this mail client anymore.
As far as I remember, Entourage would show the "no subject warning" until you get fed up with it, and switched it off. So somewhere there must be a setting to switch it on again. But don't ask me where.
how to enable no subject warning
