Thu, 09 Apr 2026 18:03:12 +0000 https://bugs.horde.org/ticket/4872 Apple iCal needs lower case mailto: tag Apple iCal needs a lower case mailto: tag in replies to iCal invitations, although RFC 2446 doesn't care about upper/lower case. Currently, IMP is sending upper case tags. Changing this to lower case would interoperability. Proposed enhancement: Fix line 273 in imp/lib/MIME/Viewer/itip.php from $vEvent_reply->setAttribute('ATTENDEE', 'MAILTO:' . $email, $params); to $vEvent_reply->setAttribute('ATTENDEE', 'mailto:' . $email, $params); Thu, 11 Jan 2007 14:19:41 +0000 https://bugs.horde.org/ticket/4872#t28246 Fixed, thanks! Thu, 11 Jan 2007 17:23:09 +0000 https://bugs.horde.org/ticket/4872#t28274