Keeping Conditional Recipients private, automating processing

Is there any way to use Conditional Recipients but NOT have them visible to other Conditional Recipients when the email is sent?

Right now they’re showing in up the To: field.

The only solution I’ve been able to think of is to use Auto Responders instead of Conditional Recipients, and customize the email that’s sent that way. It feels like there might be a more elegant way to handle this, though.

A BCC: would be a last resort, but if that’s possible I’d appreciate info on that.

Background: I have a form with about 50 checkboxes — if a box is checked, an email should be sent to the person associated with the checkbox to tell them about it. But the different people associated with the checkboxes should NOT know that the other people checked also got the message. Right now, with Conditional Recipients + Conditions, the different people are all showing up in the To: field for the email.

Ideally, it would be great to be able to set this up so I don’t have to do 50 Conditional Recipients or 50 Auto Responders — is there some way to do that? Can a checkbox feed the email address to the Processor somehow?

Thanks.