TOPIC: tags change in 2.7?

When someone registers for an event how can I include an Email address in a message to the owner / admin of the event?
I have tried

"Dear xxx

[NAME] - Name (works)
- Email (doesnt work) [CONTACT_DETAILS] (doesnt work) [ORGANIZATION] (doesnt work) All these below work... [EVENT_NAME] - Event Title [EVENT_DATE] - Event Date [LOCATION] - Event Location [AMOUNT] - Registration Fee if applicable [AMOUNT_DUE] - Amount Due [CONFIRM_NUM] - Confirmation Number to match admin email and records [DATE_REGISTERED] - The date the registration record was created."[EMAIL] - Email (doesnt work)
[CONTACT_DETAILS] (doesnt work)
[ORGANIZATION] (doesnt work)

All these below work...

[EVENT_NAME] - Event Title
[EVENT_DATE] - Event Date
[LOCATION] - Event Location
[AMOUNT] - Registration Fee if applicable
[AMOUNT_DUE] - Amount Due
[CONFIRM_NUM] - Confirmation Number to match admin email and records
[DATE_REGISTERED] - The date the registration record was created."