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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=/favicon/favicon-96x96.png rel=icon sizes=96x96 type=image/png><link href=/favicon/favicon.svg rel=icon type=image/svg+xml><link rel="shortcut icon" href=/favicon/favicon.ico><link href=/favicon/apple-touch-icon.png rel=apple-touch-icon sizes=180x180><meta content="Aron Petau" name=apple-mobile-web-app-title><link href=/favicon/site.webmanifest rel=manifest><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';
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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="Managing petau.net: A family domain with federated email" 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=Managing%20petau.net%3A%20A%20family%20domain%20with%20federated%20email" 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>!<blockquote class=markdown-alert-note><p><strong>Update 2025:</strong> The service has been running smoothly for over two years now, managing 30+ email accounts for family and friends. Still loving the Migadu choice!</blockquote><h2 id=Background>Background</h2><p>Email is a wondrous thing, and I've spent recent weeks digging deeper into how it actually works. Some consider it the last bastion of the decentralized dream the internet once had—a dream now resurfacing with federation and peer-to-peer networks as popular buzzwords.<p>We often forget that email is <em>already</em> a federated system, and likely the most important one we have. It's the only way to communicate with people who don't use the same service as you. It has open standards and isn't controlled by a single entity.<p>Going without email is unimaginable in today's world, yet most providers are the familiar few from Silicon Valley. And really, who wants their entire decentralized, federated, peer-to-peer network controlled by a tech giant? Emails used to be more than that, and they can still be.<p>Arguably, the world of messaging has grown complex since email's inception— there are more anti-spam AI tools than I care to count. But the core remains the same: a federated system. Yet capitalism has claimed many victories here too. Today, emails sent from providers outside the big five are often flagged as spam. This problem isn't easily solved, but it's worth solving.<p>Another issue: security. It's somehow collectively agreed that emails are valid for business communications, while WhatsApp and Signal are not. Yet messaging services with end-to-end encryption are likely far more secure than traditional email.<h2 id=The_Story>The Story</h2><p>So it came to pass that I, as the only family member interested in operating it, "inherited" the family domain <strong>petau.net</strong>. All our emails run through this service, previously managed by a web developer who'd lost interest.<p>With secure mail providers like ProtonMail or Tutanota on the market, I embarked on a research journey to determine how I'd manage our domain. I quickly noticed that "secure" email virtually always comes with a price tag or lacks interoperability with clients like Thunderbird or Outlook.<p>I settled on <a href=https://www.migadu.com/>Migadu</a>, a Swiss provider offering a good balance between security and usability. They also have a student tier— a significant plus.<h3 id=Why_Not_Self-Host?>Why Not Self-Host?</h3><p>While self-hosting seems ideal from a privacy perspective, it's risky for a service that's often the <em>only</em> way to recover passwords or online identity. If your server goes down during a critical password reset... well, good luck.<p>Migadu it was. After two years of essentially "set it and forget it," I'm proud to have granular control over our emails while consciously reflecting on the server location of this skeleton service that enables virtually our entire online existence.<h2 id=Beyond_Email>Beyond Email</h2><p>I certainly crave more open protocols in my life. You can also find me on <a href=https://mastodon.online/@reprintedAron>Mastodon</a>, a microblogging network built on the ActivityPub protocol—another step toward a more decentralized internet.</article><hr><nav id=post-nav><a class="post-nav-item post-nav-prev" href=https://aron.petau.net/project/lusatia/> <div class=nav-arrow>Previous</div> <span class=post-title>Lusatia - an immersion in (De)Fences</span> </a><a class="post-nav-item post-nav-next" href=https://aron.petau.net/project/commoning-cars/> <div class=nav-arrow>Next</div> <span class=post-title>Commoning Cars</span> </a></nav><span class=hidden id=copy-code-text>Copy Code</span><span class=hidden id=search-index>https://aron.petau.net/search_index.en.json</span><span class=hidden id=more-matches-text>$MATCHES more matches</span></main><footer id=site-footer><div class=carbonbadge id=wcb></div><script defer src=https://unpkg.com/website-carbon-badges@1.1.3/b.min.js></script><p><nav><ul><li><a 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