Asking guests to RSVP via email?

Tulipani

Is it tacky to ask guests on the paper invitations to RSVP by email?

GeauxTigers17

Not necessarily tacky, but you may have a low response rate. Only a couple of my friends have tried this, and they had response rates between 20-30%. I'm not sure what the cause was. 

MyNameIsNot

Not tacky.  But, it does send the message that it is a more casual event.  A mailed RSVP has some sense of formality about it that email doesn't give.  Of course, you'll also need an alternate for those who don't do email.  

I've also seen/heard that people don't respond as well when you use email.  Maybe they're just lazy, or maybe it's a function of sending the more casual tone, or maybe it's not causal at all.  But I wouldn't go this route if you need an exact head count.

heinz11msw

Very tacky. This is okay for shower and Bach invites but def not wedding ones.

TaffetaDarlingTaffeta

I don't think it's tacky.

Personally, I like RSVP through wedding websites as opposed to just e-mail - since I visit the website anyway and via phone is good additional option. However, I would include a mail-in RSVP for less tech savy guests.

Gabbygab

Believe it or not there are people who still do not use the Internet much...