Issue Description The Autodiscover V2 JSON endpoint returns 404: curl -v -X POST ‘ https://example.com/autodiscover/autodiscover.json?Email=me@example.com&Protocol=AutodiscoverV1 ’ Response: HTTP/1.1 404 Not Found However, the XML endpoint works: curl -v https://example.com/autodiscover/autodis…

Thanks for the detailed report. Based on the source code and docs, here’s what’s happening: The Autodiscover V2 JSON endpoint (autodiscover.json) was added in the current release cycle — but the URL format you’re using may not match what Stalwart expects. A few things to check: URL path casing:…

autodiscover.json returns 404 in Stalwart 0.16.4

Issues

stalwart May 11, 2026, 10:32am 3

Fixed.

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autodiscover.json returns 404 in Stalwart 0.16.4

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