https://jabberpowered.org/ What XMPP is, where Jabber came from, how to run a federated server and how the XSF turns an idea into a XEP. Written from the RFCs and the specifications. en https://jabberpowered.org/protocol/message-presence-and-iq/https://jabberpowered.org/protocol/message-presence-and-iq/Tue, 01 Sep 2026 09:00:00 +0000The three stanza types defined by RFC 6120 and what each one is actually for, with the attributes that decide where a stanza goes. https://jabberpowered.org/protocol/how-a-jid-is-built/https://jabberpowered.org/protocol/how-a-jid-is-built/Wed, 26 Aug 2026 09:00:00 +0000Localpart, domainpart and resourcepart: what RFC 7622 allows in each, why bare and full addresses behave differently, and where clients get it wrong. https://jabberpowered.org/protocol/presence-and-subscriptions/https://jabberpowered.org/protocol/presence-and-subscriptions/Wed, 19 Aug 2026 09:00:00 +0000How a contact list is stored on the server, what the four subscription states mean, and the exact exchange that adds one person to another list. https://jabberpowered.org/history/from-jabberd-to-the-xmpp-rfcs/https://jabberpowered.org/history/from-jabberd-to-the-xmpp-rfcs/Wed, 12 Aug 2026 09:00:00 +0000The dated steps between the 1999 announcement of Jabber and the 2004 publication of the first XMPP RFCs, as the XSF records them. https://jabberpowered.org/history/who-owns-the-name-jabber/https://jabberpowered.org/history/who-owns-the-name-jabber/Wed, 05 Aug 2026 09:00:00 +0000Why the protocol is called XMPP and the community is still called Jabber: the trademark, the foundation that licensed it, and who holds it now. https://jabberpowered.org/servers/ejabberd-prosody-openfire/https://jabberpowered.org/servers/ejabberd-prosody-openfire/Wed, 29 Jul 2026 09:00:00 +0000What separates the three servers people deploy, why no neutral body has measured it, and how to run the comparison yourself. https://jabberpowered.org/servers/dns-records-a-federated-server-needs/https://jabberpowered.org/servers/dns-records-a-federated-server-needs/Wed, 22 Jul 2026 09:00:00 +0000The SRV records XMPP uses for client and server connections, the fallback rules in RFC 6120, and the mistakes that quietly break federation. https://jabberpowered.org/servers/encryption-on-the-wire/https://jabberpowered.org/servers/encryption-on-the-wire/Wed, 15 Jul 2026 09:00:00 +0000The two hops an XMPP message takes, what TLS protects on each, what dialback does and does not prove, and where transport encryption stops. https://jabberpowered.org/clients/what-to-check-before-you-install/https://jabberpowered.org/clients/what-to-check-before-you-install/Wed, 08 Jul 2026 09:00:00 +0000The handful of extensions that decide whether an XMPP client feels modern: message archiving, carbons, http upload and encryption support. https://jabberpowered.org/clients/why-mobile-xmpp-is-harder/https://jabberpowered.org/clients/why-mobile-xmpp-is-harder/Wed, 01 Jul 2026 09:00:00 +0000Long lived streams against aggressive power management: what stream management and push notifications solve, and what they cost. https://jabberpowered.org/standards/how-a-xep-becomes-a-standard/https://jabberpowered.org/standards/how-a-xep-becomes-a-standard/Wed, 24 Jun 2026 09:00:00 +0000The states an extension passes through at the XSF, who votes at each step, and how to read the status block at the top of any XEP. https://jabberpowered.org/standards/muc-and-mix-group-chat/https://jabberpowered.org/standards/muc-and-mix-group-chat/Wed, 17 Jun 2026 09:00:00 +0000Why XMPP has two group chat extensions, what each assumes about identity and membership, and what that means for a user with two devices. https://jabberpowered.org/standards/omemo-and-end-to-end-encryption/https://jabberpowered.org/standards/omemo-and-end-to-end-encryption/Wed, 10 Jun 2026 09:00:00 +0000What OMEMO adds on top of transport encryption, how it handles several devices per account, and the parts of a conversation it does not hide.