Two lists with same incoming e-mail address?

I want two lists in the same application but different collections to receive emails from the same incoming email address.

I'm getting:

The list was created
successfully, but could not be assigned an e-mail alias because of the following
error: Unable to assign this e-mail address to the list, because the address is
in use.

Doable? I don't know Exchange, has anyone had to sort something like this out?

Thanks,

Scott