It's treated as a native Nostr workflow. Bridges are only required if you want to send or receive legacy emails.

You can read the protocol here or on Nostr hub https://github.com/nogringo/nostr-mail/tree/main/nostrhub

Yes, it's encrypted the same way as NIP-17 DMs. The email is decrypted on the client, to publish an email publicly you can download the email file and then publish this file on blossom.

Can you explain more deeply what is your usecase for publishing emails publicly? It may be implemented in Nmail.

I need to improve this UI to explain why and what to do when it fail. From what I understand you need to select an other address to send with.

https://nostu.be/v/naddr1qvzqqqy9hvpzpv3tq6c9rl2jx2tx4y6y5c6dj4krmse60a0vmjkea5gam3qjpfljqy28wumn8ghj7mn0wd68ytn00p68ytnyv4mqzrmhwden5te0dehhxarj9ekk7mgpz4mhxue69uhhyetvv9ujumn0wd68ytnwv46qqfp5vyunxenxx9jz6vfjxc6j6dr9xy6z6cf5vdjz6dtxxenrjceexgekzdnzc3pfwh

You can find the protocol there https://github.com/nogringo/nostr-mail/tree/main/nostrhub (it's also on nostrhub.io)

Yes it work.
There are 2 libs implementing this protocol, you can find them on https://nostrmail.org
If the email is larger than 32kB it will be stored on blossom.

Bridges are optional, the protocol is designed to use Nostr as the identity. You can send emails to Nostr users without using SMTP at all, everything uses relays and Blossom servers.
https://github.com/nogringo/nostr-mail/tree/main/nostrhub

You need to use a nip05 provider compatible with the nostr mail NIPs to send and receive emails with your nip05.

I updated the app to make it easier to add relays. It's now less likely to add an invalid relay. There is also a list of recommended relays, you can tap one and then press the save button.

Relays to add are wss://nostr-01.uid.ovh and wss://auth.nostr1.com

I appreciate your interest in this app 😀

I investigated more deeply and as I understand, the issue come from your DMs relays. In my testings the 0xchat relay felt buggy.

I suggest you to add more relays in your DMs relays list. You can add private relays like auth.nostr1.com or nostr-01.uid.ovh

I sent you 2 emails from proton. Can you check your NMail inbox?

Actually the bridges do not use NDR messages. I will improve the error handling to inform the user on what is happening.

Hello ! Thank you for your feedback.

You have nothing to do, everything is on my side.

I'm currently working on the uid.ovh bridge to make it available to as much people as possible without sacrifying the domain reputation.

For now you can use the free and unlimited bridge: testnmail.uid.ovh