Login to postfix.admin
First page after you logn that has links to appropriate pages.
List of domains and how many aliases and mailboxes each domain has.
List an overview of all mailboxes and aliases.
Logs recent activity.
Lets you add aliases to a domain.
Change your password.
Create new mailbox for a domain.
Login to 25mail.st Round cube client.
Inbox and folder view. Also a email preview pane which can be turned on and off.
Add contacts into your address book. When editing email field it will auto complete from this list.
Change settings in here like filters or view settings.