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Microsoft 365 and Office | Other
Miscellaneous topics that do not fit into specific categories.
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Welcome Paul Doran,
Thank you for reaching out to Microsoft Q&A forum.
I understand you’re trying to configure user access for a third‑party application (Apollo.ai), but the app password is not being accepted even though SMTP AUTH and third‑party passwords are enabled.
To help narrow this down, could you please confirm:
- Are you using a work or school Microsoft 365 account, or a personal Microsoft account (such as Outlook.com)?
- Is the mailbox hosted in Exchange Online, or is it connected through a hybrid or third‑party mail system?
Looking forward to your response.