Mailing lists and their use are focused in the manual.
To define a new mailing list, go to Mailing Lists and use the button:
Define a name for the new mailing list. It is important to bear in mind that this name will be used as a part of the mailing list's email address. If the mailing list for company's social events is called for example events, the address will be: events@company.com.
This is an optional entry. It is useful especially if you (intend to) create many mailing lists. Good description serves for better reference.
To add moderator(s), use the button. Clicking on it opens the list of users in the domain. To select just one user, double-click on the corresponding item. To select multiple users, hold Ctrl and click on items you want to select. Maximal number of moderators for one mailing list is 10.
To add members to a mailing list, you can either select users in the domain or enter email addresses of corresponding users.
To add users from your domain, the simplest way is to click on and select a user in the list.
To add a user who has not an account in your domain, click on the arrow on the button in the menu select . Now, enter user's email address. The Full Name entry is optional.