Skill 3.1: Configure additional email addresses for usersManage email addressesManage SIP addressesSkill 3.2: Create and manage external contacts, resources, and groupsDelegate permissionsCreate shared mailboxesManage resource mailboxesManage external contactsManage Distribution GroupsSkill 3.3: Configure personal archive policiesEnable personal archive for mailboxesRetention tags and retention policiesSkill 3.4: Configure Skype for Business Online end-user communication settingsConfigure presenceConfigure external communicationConfigure user optionsThought experimentThought experiment answersChapter summary