signup alert email
+*from
+*to
+*cc
+*bcc
+*subject
User signed up for The Ledge
+*html message
User has signed up on The Ledge.
-- the machines running The Ledge
+*text message
User has signed up on The Ledge.
See User's card: https://ledge.decko.org/User
-- the machines running The Ledge