I am a little bit confuse, do i have to config the connector on somewhere else than the kibana interface because i config the connector on it.
No, it should all be in the UI.
I think Christos means the configuration you've input in the Connector UI.
Under "Stack Management" -> " Alerts and Actions" -> "Connectors", you'll find the configuration of the Email Connector.
If you share the configuration you've provided there (not including the security credentials obviously) we might spot something. These configurations can be tricky and depend on the specific Email provider.
Also can i ask that there are 2 place to input the email in the config of the connector, the sender and the username, are those 2 places the same mail or is it difference mail.
The first email, under the sender field, is the email address from which that emails will be sent.
The second, under ** Username**, is the credentials for logging into your email server.
Many providers use the same email address for both the sender and the authentication, but some providers provide a different username for authentication than the email from which the email is sent.
If your Email provider doesn't specify a different username for authentication, then you probably want to use your email address in both of these fields.