Antwort #2 am: 14. Februar 2012, 13:12:59
localhost always defaults to the local computer.
If you run your shop on a local basis (i.e. like XAMPP) that's ok because there is no SMTP-server listening.
Use an existing email her from any provider that supports SMTP (e.g. GMX.de or yahoo)
If you run your shop on some domain already, you have to configure these settings like you would in your email program.