Hello, I just realize If I add a different sender identification on the email user account in Thunderbird, It sending easily. This is a very big problem for me and I couldn't find a solution in the mail server configuration. Everyone can add different mail identity and send like big company as fake as... I am really nervous about it.
How is it possible to comes it as default to allow a different sender even if it is a different user or user is not exist?
Topic: Different Identity sender (Read 1945 times)
