Outlook signs in through the Microsoft identity platform via AppAuth (Authorization Code +
PKCE, no secret). One consent requests the outlook.office.com IMAP and SMTP scopes; because
they share a single resource, the resulting access token authenticates both IMAP receive and
SMTP send over XOAUTH2 — reusing the existing ImapClient and SmtpSender, with no Graph call or
second token. The "common" tenant covers personal and work/school accounts.
- OutlookAuthManager (mirrors GmailAuthManager) + AuthType.OAUTH_OUTLOOK + Account.outlook()
with the unified outlook.office365.com / smtp.office365.com endpoints.
- MailConnectionFactory refreshes either OAuth provider's token; XOAUTH2 now applies to any
non-password account. AccountRepository.addOutlookAccount verifies via IMAP, then persists.
- "Sign in with Microsoft" on the account-setup screen; the manifest registers the
org.libremail.outlook:// redirect. The client id ships in the build, overridable via
secrets.properties (OUTLOOK_OAUTH_CLIENT_ID); README documents the Azure app registration.
- Verified: assemble/lint/test green; on the emulator the button launches AppAuth and
Microsoft renders its live sign-in page (client id, redirect, and scopes all accepted).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>