Daevid Vincent wrote: > There are some pretty crazy "Thread-Index:" and "UID:" things in there. > Do I have to generate them somehow? No. They are email headers relating to the tracking of replies and the internal tracking of emails on the mail server. It should be safe to leave them out, in fact the body of the message (from BEGIN:VCALENDAR to END:VCALENDAR) is likely to be all that you need. Google for a VCalendar spec. Jasper -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php