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<!doctype html><html data-theme=light lang=en xmlns=http://www.w3.org/1999/xhtml><head><meta charset=UTF-8><meta name=description><meta content="width=device-width,initial-scale=1" name=viewport><meta content=#FF7E3C name=theme-color><meta content=#CC5A26 media=(prefers-color-scheme:dark) name=theme-color><title>Postmaster - Aron Petau</title><link href=https://aron.petau.net/project/postmaster/ rel=canonical><link href=https://mastodon.online/@reprintedAron rel=me><meta content=@reprintedAron@mastodon.online name=fediverse:creator><link href=https://aron.petau.net/favicon.png rel=icon type=image/png><link href=https://aron.petau.net/apple-touch-icon.png rel=apple-touch-icon sizes=180x180 type=image/png><link crossorigin href=https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css integrity=sha512-... referrerpolicy=no-referrer rel=stylesheet><link title="Aron Petau - RSS Feed" href=https://aron.petau.net/rss.xml rel=alternate type=application/rss+xml><link title="Aron Petau - Atom Feed" href=https://aron.petau.net/atom.xml rel=alternate type=application/atom+xml><style>:root{--accent-color:#ff7e3c}[data-theme=dark]{--accent-color:#cc5a26}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--accent-color:#cc5a26}}</style><link href=https://aron.petau.net/style.css rel=stylesheet><link href=https://aron.petau.net/css/timeline.css rel=stylesheet><link href=https://aron.petau.net/css/mermaid.css rel=stylesheet><link href=https://aron.petau.net/css/skills.css rel=stylesheet><link href=https://aron.petau.net/css/gallery.css rel=stylesheet><script defer src=https://aron.petau.net/closable.js></script><script defer src=https://aron.petau.net/copy-button.js></script><script data-goatcounter=https://awebsite.goatcounter.com/count defer src=https://aron.petau.net/count.js></script><script defer src=https://aron.petau.net/fuse.js></script><script defer src=https://aron.petau.net/search-fuse.js></script><script defer src=https://aron.petau.net/theme-switcher.js></script><script type=module>import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
  mermaid.initialize({ startOnLoad: true });</script><meta content="Aron Petau" property=og:site_name><meta content="Postmaster - Aron Petau" property=og:title><meta content=https://aron.petau.net/project/postmaster/ property=og:url><meta content="I now manage the domain petau.net with a mail server and attached sites." property=og:description><meta content=https://aron.petau.net/card.png property=og:image><meta content=en_US property=og:locale><body><header id=site-nav><nav><a href=#main-content tabindex=0> Skip to Main Content </a><ul><li id=home><a href=https://aron.petau.net> <i class=icon></i>Aron Petau</a><li class=divider><li><a href=https://aron.petau.net/project/>Projects</a><li><a href=https://aron.petau.net/pages/contact/>Contact</a><li><a href=https://aron.petau.net/pages/cv/>CV</a><li><a href=https://aron.petau.net/pages/about/>About</a><li id=search><button class=circle id=search-toggle title=Search><i class=icon></i></button><li id=language-switcher><details class=closable><summary class=circle title=Language><i class=icon></i></summary> <ul><li><a href=https://aron.petau.net//de/project/postmaster/ lang=de>Deutsch</a></ul></details><li id=theme-switcher><details class=closable><summary class=circle title=Theme><i class=icon></i></summary> <ul><li><button title="Switch to Light Theme" class=circle id=theme-light><i class=icon></i></button><li><button title="Switch to Dark Theme" class=circle id=theme-dark><i class=icon></i></button><li><button title="Use System Theme" class=circle id=theme-system><i class=icon></i></button></ul></details><li id=feed><details class=closable><summary class=circle title=Feed><i class=icon></i></summary> <ul><li><a href=https://aron.petau.net/rss.xml>RSS</a><li><a href=https://aron.petau.net/atom.xml>Atom</a></ul></details><li id=repo><a class=circle href=https://forgejo.petau.net/aron/awebsite title=Repository> <i class=icon></i> </a></ul></nav><div id=search-container><label class=visually-hidden for=search-bar>Search</label><input placeholder="Search for…" autocomplete=off disabled id=search-bar type=search><div id=search-results-container><div id=search-results></div></div></div></header><main id=main-content><article><div id=heading><p><small> <time datetime=" 2023-12-06T00:00:00+00:00">Published on December 06, 2023</time></small><h1>Postmaster</h1><p><small><span>By Aron Petau</span><span> • </span><span>3 minutes read</span><span> • </span></small><ul class=tags><li><a class=tag href=https://aron.petau.net/tags/activitypub/>activitypub</a><li><a class=tag href=https://aron.petau.net/tags/dev-ops/>dev-ops</a><li><a class=tag href=https://aron.petau.net/tags/email/>email</a><li><a class=tag href=https://aron.petau.net/tags/federation/>federation</a><li><a class=tag href=https://aron.petau.net/tags/open-protocols/>open protocols</a><li><a class=tag href=https://aron.petau.net/tags/peer-to-peer/>peer-to-peer</a><li><a class=tag href=https://aron.petau.net/tags/petau-net/>petau.net</a><li><a class=tag href=https://aron.petau.net/tags/server/>server</a><li><a class=tag href=https://aron.petau.net/tags/web/>web</a></ul></div><div id=buttons-container><a title="Go to Top" href=#top id=go-to-top><i class=icon></i></a><a href="https://shareopenly.org/share/?url=https://aron.petau.net/project/postmaster/&text=I%20now%20manage%20the%20domain%20petau.net%20with%20a%20mail%20server%20and%20attached%20sites." id=share title=Share><i class=icon></i></a><a title="File an Issue" href=https://forgejo.petau.net/aron/awebsite/issues id=issue><i class=icon></i></a></div><h2 id=Postmaster>Postmaster</h2><p>Hello from <a href=mailto:aron@petau.net>aron@petau.net</a>!<h2 id=Background>Background</h2><p>Emails are a wondrous thing and I spend the last weeks digging a bit deeper in how they actually work. Some people consider them the last domain of the decentralized dream the internet once had and that is now popping up again with federation and peer-to-peer networks as quite popular buzzwords.<p>We often forget that email is already a federated system and that it is likely the most impo
rebuild 2025-05-23 22:18:46 +02:00			<!doctype html><html data-theme=light lang=en xmlns=http://www.w3.org/1999/xhtml><head><meta charset=UTF-8><meta name=description><meta content="width=device-width,initial-scale=1" name=viewport><meta content=#FF7E3C name=theme-color><meta content=#CC5A26 media=(prefers-color-scheme:dark) name=theme-color><title>Postmaster - Aron Petau</title><link href=https://aron.petau.net/project/postmaster/ rel=canonical><link href=https://mastodon.online/@reprintedAron rel=me><meta content=@reprintedAron@mastodon.online name=fediverse:creator><link href=https://aron.petau.net/favicon.png rel=icon type=image/png><link href=https://aron.petau.net/apple-touch-icon.png rel=apple-touch-icon sizes=180x180 type=image/png><link crossorigin href=https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css integrity=sha512-... referrerpolicy=no-referrer rel=stylesheet><link title="Aron Petau - RSS Feed" href=https://aron.petau.net/rss.xml rel=alternate type=application/rss+xml><link title="Aron Petau - Atom Feed" href=https://aron.petau.net/atom.xml rel=alternate type=application/atom+xml><style>:root{--accent-color:#ff7e3c}[data-theme=dark]{--accent-color:#cc5a26}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--accent-color:#cc5a26}}</style><link href=https://aron.petau.net/style.css rel=stylesheet><link href=https://aron.petau.net/css/timeline.css rel=stylesheet><link href=https://aron.petau.net/css/mermaid.css rel=stylesheet><link href=https://aron.petau.net/css/skills.css rel=stylesheet><link href=https://aron.petau.net/css/gallery.css rel=stylesheet><script defer src=https://aron.petau.net/closable.js></script><script defer src=https://aron.petau.net/copy-button.js></script><script data-goatcounter=https://awebsite.goatcounter.com/count defer src=https://aron.petau.net/count.js></script><script defer src=https://aron.petau.net/fuse.js></script><script defer src=https://aron.petau.net/search-fuse.js></script><script defer src=https://aron.petau.net/theme-switcher.js></script><script type=module>import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
add vogelvilla 2025-05-27 10:14:01 +02:00			mermaid.initialize({ startOnLoad: true });</script><meta content="Aron Petau" property=og:site_name><meta content="Postmaster - Aron Petau" property=og:title><meta content=https://aron.petau.net/project/postmaster/ property=og:url><meta content="I now manage the domain petau.net with a mail server and attached sites." property=og:description><meta content=https://aron.petau.net/card.png property=og:image><meta content=en_US property=og:locale><body><header id=site-nav><nav><a href=#main-content tabindex=0> Skip to Main Content </a><ul><li id=home><a href=https://aron.petau.net> <i class=icon></i>Aron Petau</a><li class=divider><li><a href=https://aron.petau.net/project/>Projects</a><li><a href=https://aron.petau.net/pages/contact/>Contact</a><li><a href=https://aron.petau.net/pages/cv/>CV</a><li><a href=https://aron.petau.net/pages/about/>About</a><li id=search><button class=circle id=search-toggle title=Search><i class=icon></i></button><li id=language-switcher><details class=closable><summary class=circle title=Language><i class=icon></i></summary> <ul><li><a href=https://aron.petau.net//de/project/postmaster/ lang=de>Deutsch</a></ul></details><li id=theme-switcher><details class=closable><summary class=circle title=Theme><i class=icon></i></summary> <ul><li><button title="Switch to Light Theme" class=circle id=theme-light><i class=icon></i></button><li><button title="Switch to Dark Theme" class=circle id=theme-dark><i class=icon></i></button><li><button title="Use System Theme" class=circle id=theme-system><i class=icon></i></button></ul></details><li id=feed><details class=closable><summary class=circle title=Feed><i class=icon></i></summary> <ul><li><a href=https://aron.petau.net/rss.xml>RSS</a><li><a href=https://aron.petau.net/atom.xml>Atom</a></ul></details><li id=repo><a class=circle href=https://forgejo.petau.net/aron/awebsite title=Repository> <i class=icon></i> </a></ul></nav><div id=search-container><label class=visually-hidden for=search-bar>Search</label><input placeholder="Search for…" autocomplete=off disabled id=search-bar type=search><div id=search-results-container><div id=search-results></div></div></div></header><main id=main-content><article><div id=heading><p><small> <time datetime=" 2023-12-06T00:00:00+00:00">Published on December 06, 2023</time></small><h1>Postmaster</h1><p><small><span>By Aron Petau</span><span> • </span><span>3 minutes read</span><span> • </span></small><ul class=tags><li><a class=tag href=https://aron.petau.net/tags/activitypub/>activitypub</a><li><a class=tag href=https://aron.petau.net/tags/dev-ops/>dev-ops</a><li><a class=tag href=https://aron.petau.net/tags/email/>email</a><li><a class=tag href=https://aron.petau.net/tags/federation/>federation</a><li><a class=tag href=https://aron.petau.net/tags/open-protocols/>open protocols</a><li><a class=tag href=https://aron.petau.net/tags/peer-to-peer/>peer-to-peer</a><li><a class=tag href=https://aron.petau.net/tags/petau-net/>petau.net</a><li><a class=tag href=https://aron.petau.net/tags/server/>server</a><li><a class=tag href=https://aron.petau.net/tags/web/>web</a></ul></div><div id=buttons-container><a title="Go to Top" href=#top id=go-to-top><i class=icon></i></a><a href="https://shareopenly.org/share/?url=https://aron.petau.net/project/postmaster/&text=I%20now%20manage%20the%20domain%20petau.net%20with%20a%20mail%20server%20and%20attached%20sites." id=share title=Share><i class=icon></i></a><a title="File an Issue" href=https://forgejo.petau.net/aron/awebsite/issues id=issue><i class=icon></i></a></div><h2 id=Postmaster>Postmaster</h2><p>Hello from <a href=mailto:aron@petau.net>aron@petau.net</a>!<h2 id=Background>Background</h2><p>Emails are a wondrous thing and I spend the last weeks digging a bit deeper in how they actually work. Some people consider them the last domain of the decentralized dream the internet once had and that is now popping up again with federation and peer-to-peer networks as quite popular buzzwords.<p>We often forget that email is already a federated system and that it is likely the most impo