Postponement. Do i re-invite everyone?

Hmm this is tough just because of the small detail of people who have not yet RSVP'd. I postponed my wedding 2 weeks before it took place (3/27) so I had all my RSVPs done where at that point I had already followed up with anyone who hadn't responded. So for us, our new date in the fall, we're first just sending invites to everyone who RSVP'd yes, and then if any of those people are unable to attend given the date change, then we essentially have a 'B' list type of list for anyone on the original invite list. For us we went this route mainly to help everything transition seamlessly; for one, our final count was already over the max limit (we were only supposed to have 150 but we were already at 156) and we had all the table seating assignments finalized, food counts, final head counts and pricing and everything printed that required a final head count and everyone understood! Especially bc it's not like you sent save the dates and are now choosing to un-invite people, or rescinding invites from people who said they could come. But I think it just depends on circumstance!

I would just resend to everyone whom I originally sent it to. i say this to say I'm bad and guilty of not rsvping to a wedding. I put the card in my car to mail and it slip my mind. I did wind up seeing the groom and told him to be ready to dance the night away we laughed later that night his fiance text me thats she excited we plan on making it she was bumped because she thought we weren't since she never received our rsvp. I apologized at least 5 times. I say all this to say not everyone who didnt reply did it with malice some of us just were airheads and forgot.

I would first make sure to inform anyone that was originally invited that you are having to postpone. This is assuming you have already sent out invites or STD's. Once you have a new plan in place, new date etc, I would invite the same people. It is heartbreaking to see all of these post from couples having to completely rearrange everything. I am so sorry but your big day will come and it will be amazing!

You should invite everyone again.

Did you follow up with the people you didn't hear from the first time?

I wouldn't assume that they just didn't respond. I had 4 postal mishaps when I sent the Save-The-Dates. When I reached out just for the sake of saying of "saying hi" it was then that I found out that the guest didn't receive their save-the-date. Word got out that I did send them and I got text messages from 3 others just asking if I had sent theirs. Now mind you these were family members that I want at the wedding. Addresses were correct and two weeks later they received save-the dates. Couldn't tell you what happened, it just did.

So with that being said, maybe the RSVP got caught up in the mail. All 30 of them, probably not. But a few might have and you would never know. I personally would resend to all invited previously.

Zazzle and other websites are offering "Change the Date" cards. Might be a good option.