Story

I currently have my family on a custom domain.

I have been thinking towards the future and have been concerned what would happen should the domain get released and someone else acquire it. Namely they would then "own" the online identity of my family members. This obviously has security implications.

I don't believe gmail and live recycle emails for this very reason.

What other reliable providers can you recommend that don't recycle email addresses. It would be nice to have a memorable user-part, so nothing oversubscribed would be ideal. I am ideally looking to spend ~$150/y for 5 email addresses, but please mention any you know even if they exceed that.

I looked into hey.com, whose family plan sounds ideal - but unfortunately only the primary address is reserved - the others get released for reuse 30 days after termination (you can contact them after termination for reservation, but its not the default). I don't want to leave anything to chance, so that isn't an option for me.