Multiple "one-time cc" addresses

I am sure this is a simple one, but my google-fu is weak.

How do you add more than one address to the “one-time CC” field on the
"Reply" page? I tried separating the addresses with spaces, but that
did not work. Commas? Semicolons? Not supported?

Thanks,

Eric J. Roode
Senior Enterprise Developer
Barrack, Rodos & Bacine
(215) 963-0600

I am sure this is a simple one, but my google-fu is weak.

How do you add more than one address to the “one-time CC” field on the
"Reply" page? I tried separating the addresses with spaces, but that
did not work. Commas? Semicolons? Not supported?

Commas.