Hello!
One way would be to create an iCalendar file (event.ics) [http://tools.ietf.org/html/rfc5545] as notification format.
The only problem is to send it by attachment.
More or less, would be something like this:
BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
BEGIN:VEVENT
UID:19970610T172345Z-AF23B2@example.com
DTSTAMP:19970610T172345Z
DTSTART:19970714T170000Z
DTEND:19970715T040000Z
ORGANIZER;CN=Abraham Lincoln;EMAIL=abraham.lincoln@president.gov.us;SEND-BY="mailto:abraham.lincoln@president.gov.us":mailto:abraham.lincoln@president.gov.us
ATTENDEE;CN=Barack Obama;CUTYPE=INDIVIDUAL;PARTSTAT=NEEDS-ACTION; ROLE=REQ-PARTICIPANT;RSVP=FALSE;EMAIL=barack.obama@president.gov.us:mailto:barack.obama@president.gov.us
SUMMARY:Bastille Day Party
END:VEVENT
END:VCALENDAR
If anyone can help with this, it would be a great feature.
Regards,
Rodrigo Godoy