General
In addition to creating groups, you also have the option of creating mailing lists. The main difference to a group is that a
mailing list only contains e-mail addresses. This makes it easy to send an e-mail to a recipient with two or more different
e-mail addresses. Whereas with a group, the default e-mail address of the assigned contact is always used. In principle, a mailing list
is treated by the system like a contact. It is therefore listed under "All Contacts", is listed in the auto-completion and can be
assigned to its own groups.