JeffG on Nostr: They would need to have some overlapping relays, otherwise they wouldn't see each ...
They would need to have some overlapping relays, otherwise they wouldn't see each other's messages. It would be up to clients that implement this but I would imagine that they would try and default to a set of overlapping relays between the users. Or use the user's inbox relays if it's a DM conversation instead of a larger group conversation.