Bendik LynghaugandClaude Opus 5 82744011ed Serve PACC on the mail domain ...

Stalwart implements PACC - /.well-known/user-agent-configuration.json,
one JSON document advertising JMAP, IMAP, SMTP, CalDAV, CardDAV, WebDAV,
ManageSieve and how to authenticate. Unlike autoconfig and Autodiscover
it is defined to be fetched from the mail domain itself rather than from
a guessed subdomain, so the apex is exactly where it belongs, and it was
only reachable at mail.<domain>. /.well-known/mail-v1.xml goes with it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015GeH3y8fwTaTudaD88P57o

2026-10-07 10:43:16 +02:00

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workflows

Serve PACC on the mail domain

2026-10-07 10:43:16 +02:00