To set up an e-mail address that will accept mail and forward it to multiple other e-mail addresses:
The domain name is shown to the right of @ sign, so you only need to type the name. This can be, for example, your first name and last name separated by a dot, a department name, or any other text in Latin symbols. The name should be short enough to remember. It can comprise alphanumeric, dash dot and underscore symbols.
You should add at least one e-mail address before enabling mail forwarding to several e-mail addresses.