We tried to integrate keycloak with google login, and to reauthenticate we send email verification to the user email. But when we tried the google login process: login --> add existing user --> email failed to send with the following error:

Anyone know why this happens? Tried to find similar problems on google but can't find any.

We use sendpulse.com as the SMTP server (with SSL), and in the login setting we use enable request SSL for all requests, if that matters.

Thanks!

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