How do you handle this is a tactful way? Over the holidays, it's common that I'll get an email or card from old friends who I am no longer frequently in touch with. I feel happy to know they're thinking of me and are taking the time to check in to see how I am, and let me know what's going on in their lives, etc.
So I know it's not a big deal, but with all the advice to keep quiet about wedding talk around people that aren't going to be invited, I'm just not sure how much to share. Ideally, I'd love to email back and share what's new in my life - getting married in a few months, but I don't want this to lead to weirdness about being invited or not. On the other hand, I don't want to keep it a secret that I'm getting married soon either. And I feel it's a little rude to wait until after the wedding to reply just to avoid the whole topic.
I guess one tactic is to just say "we're having a small destination wedding" although with our current guest estimate it's not going to be the typical small DW.