Allow contacts without an email address (#5079)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Allow contacts without an email address (#5079)
 - Localized timezone selector (#4983)
 - Update to TinyMCE 4.5.7
 - Fix bug where invalid recipients could be silently discarded (#5739)

program/lib/Roundcube/rcube_contacts.php

@@ -595,9 +595,12 @@ class rcube_contacts extends rcube_addressbook
         // validate e-mail addresses
         $valid = parent::validate($save_data, $autofix);
 
-        // require at least one email address or a name
-        if ($valid && !strlen($save_data['firstname'].$save_data['surname'].$save_data['name']) && !array_filter($this->get_col_values('email', $save_data, true))) {
-            $this->set_error(self::ERROR_VALIDATE, 'noemailwarning');
+        // require at least some name or email
+        if ($valid
+            && !strlen($save_data['firstname'].$save_data['surname'].$save_data['name'])
+            && !count(array_filter($this->get_col_values('email', $save_data, true)))
+        ) {
+            $this->set_error(self::ERROR_VALIDATE, 'nonamewarning');
             $valid = false;
         }