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mailcow-dockerized/data/conf
Sebastian Müller 8db3cae826 [Nginx] Send Basic auth challenge for unauthenticated ActiveSync requests
Outlook for iOS/Android connects through Microsoft's sync service, which
sends each EAS command without credentials first and only retries with
Basic auth after a 401 + WWW-Authenticate challenge. SOGo answers these
unauthenticated POSTs (Provision, FolderSync, Sync, ...) with 403, so the
Outlook apps never get past Provision and show an empty mailbox (#5846).

Answer requests without an Authorization header with a Basic challenge
in nginx before they reach SOGo. Clients that send credentials up front
are not affected.
2026-10-20 20:48:30 +02:00
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2019-11-26 21:08:47 +01:00