I think the first thing to say is we use the EWS API for O365 regardless of the authentication protocol used.
We understand its due to be removed by Microsoft in October 2026 and will replace it with MS-Graph before then.
However if its already disabled in your env, then not sure what options we have.
As regards OAuth, have you reviewed the doc section here ? (We support both secrets and certs)
https://www.ibm.com/docs/en/sqsp/51.0.0?topic=administrator-changed-in-51020-configuring-inbound-email-connection
------------------------------
Martin Feeney
Product Manager, IBM Security QRadar SOAR
martin.feeney@ie.ibm.com------------------------------
Original Message:
Sent: Tue July 29, 2025 05:42 PM
From: Raymond Tam
Subject: Inbound Email Connections with O365 mailbox
Has anyone successfully configured "Inbound Email Connections" using an O365 mailbox with any of the supported protocols?
If so, could you please share a sample configuration? I've reviewed all three protocol options, but not able to identify a suitable solution so far:
Exchange Protocol: This appears to use EWS, which is not enabled in our environment. Additionally, Microsoft is planning to retire EWS soon, so this doesn't seem like a viable long-term solution.
IMAP Protocol: IMAP is not allowed in our organization, so this option is not applicable.
OAuth Protocol: This seems like the most promising option, but I'm unclear how it works and which endpoint should be used for configuration.
------------------------------
Raymond Tam
------------------------------