Add email service and settings

app/services/ldap_manager/update_email_maildrop.rb

@@ -0,0 +1,12 @@
+module LdapManager
+  class UpdateEmailMaildrop < LdapManagerService
+    def initialize(dn, address)
+      @dn = dn
+      @address = address
+    end
+
+    def call
+      replace_attribute @dn, :mailRoutingAddress, @address
+    end
+  end
+end

app/services/ldap_manager/update_email_password.rb

@@ -0,0 +1,12 @@
+module LdapManager
+  class UpdateEmailPassword < LdapManagerService
+    def initialize(dn, password_hash)
+      @dn = dn
+      @password_hash = password_hash
+    end
+
+    def call
+      replace_attribute @dn, :mailpassword, @password_hash
+    end
+  end
+end