 Matthew Meszaros
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5241256274
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feat: classify OAuth token refusals by what the provider actually said instead of calling every non-5xx refusal a dead grant: internal/pkg/mailauth reads the RFC 6749 error code, so a revoked or expired grant (invalid_grant and the interaction family) is an authentication error the customer must reconnect, while a 429 from the token endpoint, a 5xx, an unrecognised code and above all invalid_client stay retryable, because an expired app secret returns invalid_client for every Outlook mailbox on the install at once and deactivating all of them into a re-consent that cannot work either is a far worse outage than retrying until it is rotated; the Graph client logs the provider's own error code and description next to the verdict, and the tests drive real refusals through the real oauth2 transport on the fetch, list and send paths
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2026-08-27 20:35:01 -07:00 |
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