mermaid.initialize({ startOnLoad: true });</script><metacontent="Aron Petau"property=og:site_name><metacontent="Postmaster - Aron Petau"property=og:title><metacontent=https://aron.petau.net/project/postmaster/property=og:url><metacontent="Managing petau.net: A family domain with federated email"property=og:description><metacontent=https://aron.petau.net/card.pngproperty=og:image><metacontent=en_USproperty=og:locale><body><headerid=site-nav><nav><ahref=#main-contenttabindex=0> Skip to Main Content </a><ul><liid=home><ahref=https://aron.petau.net><iclass=icon></i>Aron Petau</a><liclass=divider><li><ahref=https://aron.petau.net/project/>Projects</a><li><ahref=https://aron.petau.net/pages/contact/>Contact</a><li><ahref=https://aron.petau.net/pages/cv/>CV</a><li><ahref=https://aron.petau.net/pages/about/>About</a><liid=search><buttonclass=circleid=search-toggletitle=Search><iclass=icon></i></button><liid=language-switcher><detailsclass=closable><summaryclass=circletitle=Language><iclass=icon></i></summary><ul><li><ahref=https://aron.petau.net//de/project/postmaster/lang=de>Deutsch</a></ul></details><liid=theme-switcher><detailsclass=closable><summaryclass=circletitle=Theme><iclass=icon></i></summary><ul><li><buttontitle="Switch to Light Theme"class=circleid=theme-light><iclass=icon></i></button><li><buttontitle="Switch to Dark Theme"class=circleid=theme-dark><iclass=icon></i></button><li><buttontitle="Use System Theme"class=circleid=theme-system><iclass=icon></i></button></ul></details><liid=feed><detailsclass=closable><summaryclass=circletitle=Feed><iclass=icon></i></summary><ul><li><ahref=https://aron.petau.net/rss.xml>RSS</a><li><ahref=https://aron.petau.net/atom.xml>Atom</a></ul></details><liid=repo><aclass=circlehref=https://forgejo.petau.net/aron/awebsitetitle=Repository><iclass=icon></i></a></ul></nav><divid=search-container><labelclass=visually-hiddenfor=search-bar>Search</label><inputplaceholder="Search for…"autocomplete=offdisabledid=search-bartype=search><divid=search-results-container><divid=search-results></div></div></div></header><mainid=main-content><article><divid=heading><p><small><timedatetime=" 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><ulclass=tags><li><aclass=taghref=https://aron.petau.net/tags/activitypub/>activitypub</a><li><aclass=taghref=https://aron.petau.net/tags/dev-ops/>dev-ops</a><li><aclass=taghref=https://aron.petau.net/tags/email/>email</a><li><aclass=taghref=https://aron.petau.net/tags/federation/>federation</a><li><aclass=taghref=https://aron.petau.net/tags/open-protocols/>open protocols</a><li><aclass=taghref=https://aron.petau.net/tags/peer-to-peer/>peer-to-peer</a><li><aclass=taghref=https://aron.petau.net/tags/petau-net/>petau.net</a><li><aclass=taghref=https://aron.petau.net/tags/server/>server</a><li><aclass=taghref=https://aron.petau.net/tags/web/>web</a></ul></div><divid=buttons-container><atitle="Go to Top"href=#topid=go-to-top><iclass=icon></i></a><ahref="https://shareopenly.org/share/?url=https://aron.petau.net/project/postmaster/&text=Managing%20petau.net%3A%20A%20family%20domain%20with%20federated%20email"id=sharetitle=Share><iclass=icon></i></a><atitle="File an Issue"href=https://forgejo.petau.net/aron/awebsite/issuesid=issue><iclass=icon></i></a></div><h2id=Postmaster>Postmaster</h2><p>Hello from <ahref=mailto:aron@petau.net>aron@petau.net</a>!<blockquoteclass=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><h2id=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 resurfa