This script will be run prior to sending the email to allow modifying the email before sending. The MimeMessage variable is "msg," the build is available as "build", a logger is available as "logger". The trigger that caused the email is available as "trigger" and all triggered builds are available as a map "triggered."

You may also cancel sending the email by setting the boolean variable "cancel" to true.

You can set the default pre-send script here and then use ${DEFAULT_PRESEND_SCRIPT} in the project settings to use the script written here.