In Figure 3 you should see the postmaster account. This is the administration account for Qmail admin. Enter the name for the Email address. In Fig 4 we've entered johndoe. The Changing of passwords Deleting and changing the Catchall can be accomplished by clicking the yellow centered buttons under the corresponding action.
Aliases are quite simple.
First click on the Add New Alias button. Then on the next screen. Autoresponders do exactly what the word implies they automatically respond with a pre written message immediately after an Email is sent to them. Enter the Owners Email Address, this is where a copy of the Email that triggered the autoresponce will be sent to. Click Add and your all set.