Can't send mails with GSuite Relay-SMTP

Configuring the server
1

Hi,

I am trying to send mails with my GSuite Account using the Google Relay-SMTP. In the screenshot you can see my configuration. When I press the button “Test connection” I get the error message “Failed to send mail”. Can you see something that is obvious wrong?

image
image1241×741 45.5 KB

Thanks for any help!

Greetings
Jan

2

Does the user have an email configured because Keycloak uses the currently logged in user to send a test email?

3

Yes, that was my first error, but it throws a different error message. I have fixed that issue.
Maybe I should add some more informations. I am using the docker container. I have setup the Relay-SMTP and allowed less secure apps in the google console.

EDIT: I had to activate 2 Factor and generate a seprrate app password. Thank you for your time!

4

If you have enabled keystore, then you need to add the Google CA certificate to that. I had the same issue and when i added the google CA, the email started working

keytool -import -alias google-ca -keystore truststore.jks -file googleca.cer

You can get the cer by typing gmail.com in your browser and then export the certifiate in base-64 format.

5

Hi Guys,
I´m not able to do this.
I´m using as base imagem: FROM jboss/keycloak:15.0.2
And i only get “keytool error: java.io.FileNotFoundException: truststore.jks (Permission denied)”