Yes! If you have a group email list, from the Guests page click the "Import Contacts" option and choose "Add a group email" on the next page.
A group email address, also known as a distribution list or listserve, is a single email address that goes to multiple people. It is important to make sure that your group email address can accept emails outside of the network it is one. Some group email addresses are private by default and you will need to work with your IT group to enable it to receive external emails.
From here, you can simply type in the group email address and click Add.