Paperlesspost.com is horrible! I sent out invitations for my son's birthday party. I found that it confused people by asking them to rsvp although they'd already responded. I have seen this when others have invited me to their events through paperlesspost.com, too. The worst was that I changed the time of the event two days after sending out the invitations, but paperless post did NOT alert guests of the time change. My guests arrived at the venue - which was not ready, and I was not there - two hours early. I was extremely embarrassed and worried that none of my kid's friends would return at the correct time. Luckily we have amazing friends and they all came back. Paperlesspost.com, however, sucks!