Not sure if this is what you're looking for but in WHM go to Home »Server Configuration »Tweak Settings » Mail. You can change your default email program there.
Where i can found to change the option for existing accounts manually?
I have one problem with my domain, still getting spam to default account redirect to one account reserved....
Where i can found to change the option for existing accounts manually?
I have one problem with my domain, still getting spam to default account redirect to one account reserved....