Setting email notifications

Hi,
I’m trying to set email notifications in Katalon Studio but the username must be a full email address. The username I have to use does not have @gmail.com, for example, so it hasn’t been possible for me to complete this setup. Is there a way to do that?

@lbetancourth I have a little bit difficult to understand about “email notifications” , whether it means email setting follow this below https://docs.katalon.com/katalon-studio/docs/emails-settings.html