Basic authentication is being blocked on the pre-authentication layer in Exchange Online, so the request never hits Azure AD, and thus you will see no sign-in logs therein.
How to check basic authentication logs
I am setting POP3 authentication on a printer to receive emails in it and then print the emails automatically.
I know that the basic authentication for Exchange Online has been disabled, but the question is, when I finished configuration on the printer (POP3/SSL/995/username/password), and set it to fetch email every 15 minutes, I can't see any sign-in logs in Azure Admin-Users-sign-in logs.
- I can see the traffic were allowed in the firewall: outbound port 995 every 15 minutes.
- The printer supports OAuth2.0, and it works good on it.
So the connectivity to POP3 server: outlook.office365.com is good. (While for some reason, we can't use OAuth2.0)
- The email account has enabled MFA, and has license.
My concern is why there isn't any sign-in logs on Azure. I think there should be some "fail" logs every 15 minutes because the printer will try to contact the POP3 server every 15 minutes.
I set the filter but no use, as there isn't any logs to filt...
Thank in advance
Hi @ George Fang,
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Hi @ George Fang,
I haven't heard back from you for a long time, do you have any other questions about this question?
If the response has helped you, please "accept answer" to help other community members quickly find helpful responses. If you need further help, feel free to post back to the discussion.
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