Currently, groups.0xchat.com accepts zap events.
A question for NIP-29 relay operators nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6 nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft nostr:npub10td4yrp6cl9kmjp9x5yd7r8pm96a5j07lk5mtj2kw39qf8frpt8qm9x2wl Are you accepting zap/nutzap events that e-tag events stored by the relay? Haven't found any so far.
Discussion
Nice, tried to find a zap to you but got none and the relay won't allow me to query zaps without a/p/e/h tags. I'll keep looking to see if I can find any. Kind of related question: are you seeing h-tags in zap receipts? The zaps NIP doesn't explicitly mention that single-letter tags must be included in the receipt, just a/p/e tags.

Yes, group relay has different implementations, and it requires a group ID. You can try adding the ‘h’ tag with ‘825f1ed57f20d06d43e93f3cb8207d61ce8cdfff9d9f6722540329c00fba1b44’