Deprecated: Return type of Horde_Mime_Headers_Element::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/edepracl/public_html/moodle30/lib/horde/framework/Horde/Mime/Headers/Element.php on line 176