Can Apple Mail be automatically forwarded without opening Apple Mail

[iMore Question]

I would like to use Mailbox to read all my mail including Apple Mail. Other mail accounts I have can be forwarded using setting in their Web Client but I cannot see any way to do this with Apple Mail (iCloud). Is there a way to do this without having Apple Mail running and forwarding from within the App itself?

 

[Bigeric23]

There is no direct way that I'm aware of, no.