odysseus/website/email-outlook.md
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refactor(docs): separate Pages site source (#6176)
* refactor(docs): separate Pages site source

* fix(docs): preserve published guide pages

* fix(ci): run asset ownership tests for site changes

* fix(docs): track future website media

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2026-08-27 10:20:36 +02:00

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Outlook / Office 365 email accounts

Odysseus email accounts currently use IMAP and SMTP with username/password authentication. That works for providers that still allow app passwords or mailbox passwords for IMAP/SMTP.

Microsoft disables basic authentication for Outlook and Microsoft 365 in most modern accounts and tenants. If you try to add an Outlook account with a normal password, Microsoft may return errors such as:

  • IMAP: AUTHENTICATE failed
  • SMTP: 535 5.7.139 Authentication unsuccessful, basic authentication is disabled

This is expected. Odysseus does not support Microsoft OAuth or Graph Mail yet, so Outlook / Office 365 accounts cannot currently be added through the password form. Use another email provider with app-password support, or track the future Microsoft Graph OAuth integration.