# Administration (mailcow) The administration and management of a mailbox or domain is done through an interface called Mailcow. Whatever type of Hosterra Email account you use and whatever your role, you can access Mailcow at [https://hosterra.email](https://hosterra.email). ### Mailbox If you're a user, mailcow offers you an interface and features to [manage your mailbox](https://hosterra.help/books/mail-hosting/chapter/mailbox-settings "Mailbox settings") and its options such as [spam sensitivity](https://hosterra.help/books/mail-hosting/page/spam-sensitivity-vmU "Spam sensitivity"), [disposable aliases](https://hosterra.help/books/mail-hosting/page/temporary-aliases "Temporary aliases"), etc. [![mailcow-user-en.webp](https://hosterra.help/uploads/images/gallery/2024-01/scaled-1680-/mailcow-user-en.webp)](https://hosterra.help/uploads/images/gallery/2024-01/mailcow-user-en.webp)

If you are not yet a Hosterra Email customer, you can test this interface with the following credentials: **URL** [https://hosterra.email/](https://hosterra.email/) **User** `demo@example.com` **Password** `demo1234`

### Domain If you're a domain administrator, Mailcow will offer you all the features you need to [manage your domain](https://hosterra.help/books/mail-hosting/chapter/domain-settings "Domain settings"). [![mailcow-admin-en.webp](https://hosterra.help/uploads/images/gallery/2024-01/scaled-1680-/mailcow-admin-en.webp)](https://hosterra.help/uploads/images/gallery/2024-01/mailcow-admin-en.webp)

If you are not yet a Hosterra Email customer, you can test this interface with the following credentials: **URL** [https://hosterra.email/](https://hosterra.email/) **User** `mailadmin_example.com` **Password** `demo1234`