Hi Caroline,

Teh suggestions didn't work. But I think I found the bug. Looks like the systems only honors the settings of the "Sales forms". Even for the POs, it's ignoring the settings there and uses the one in the Sales forms. 

I removed the cc from my sales forms altogether, and next time I issued a PO, I no longer had that wrong email address showing on the cc for the PO email. 

Try that and see if you get the same result. But I think this is a bug, if not the one.