A reminder: both Google and Microsoft are (or already have) began the process of removing basic authentication capability for their mail services. Sending via SMTP is currently unaffected.
Am I affected?
You are affected by this change if the following applies:
You have any JEMHC message sources connected to Google/Microsoft mail services
You are authenticating the message source connection using basic authentication (username/password)
What do I need to do?
A migration path is already provided for those affected. Please read Google and Microsoft deprecation of basic authentication for mail retrieval for more information.