return address on RSVP

The post office mailed a ton of mine with no return address, we keep getting cards back with nothing but the yes/no boxes checked. I left it blank so the guests could fill theirs in.

ETA: mine are postcards so slightly different from those in envelopes I suppose.

We didn't write return addresses on the RSVP envelope and I got plenty back with no return addresses on them. Not even a name where the return address would be.

Ok good to know the PO will send it but (since i'm printing my own envelopes) I may preprint a return address or at least a return name, so that I know who is sending it back

I'm glad I asked

You can also subtly number the cards and add those numbers to your guest list. Then you know who they are from if they dont write anything