A note on "#deltachat is going proprietary with #chatmail relays":
1) It's all based on IETF standards, with configuration and custom integration code fully FOSS and documented at: https://chatmail.at/doc/relay/ with hundreds of permission-free deployments.
2) We know of several alternative relay implementations and deployments
3) Own servers or big email providers can be used (YMMV)
However it's fair to criticize our relentless focus on E2EE, and our moving away from email addresses as identity.
Delta Chat
npub16z…v4ynp
2026-06-11 13:07:52 UTC
Author Public Key
npub16zxpwcght62n7q4j88uj6ynehdqfzk572rues3y2tshr0vehfwjq2v4ynpSeen on
wss://relay.ditto.pubPublished at
2026-06-11 13:07:52 UTCEvent JSON
{
"id": "5409380d5233ba8177811c7abd75b80c11ea5dbc7a949df5a1cbf46c4aebdffa",
"pubkey": "d08c1761175e953f02b239f92d1279bb40915a9e50f998448a5c2e37b3374ba4",
"created_at": 1781183272,
"kind": 1,
"tags": [
[
"t",
"deltachat"
],
[
"t",
"chatmail"
],
[
"proxy",
"https://chaos.social/users/delta/statuses/116731626972297600",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.ditto.pub"
]
],
"content": "A note on \"#deltachat is going proprietary with #chatmail relays\":\n\n1) It's all based on IETF standards, with configuration and custom integration code fully FOSS and documented at: https://chatmail.at/doc/relay/ with hundreds of permission-free deployments.\n\n2) We know of several alternative relay implementations and deployments\n\n3) Own servers or big email providers can be used (YMMV)\n\nHowever it's fair to criticize our relentless focus on E2EE, and our moving away from email addresses as identity.",
"sig": "a5a831c7a5b812afb69a6d4609de6342c2d903ddd44e5199b2fc47126b2c897366c249aafd918f16d913023454b53cac5395ee38a614b1f37d39c8344405c527"
}