How to use the email.pl script to send alerts to recipients defined in a managed entity's attribute

The email.pl script can accept email addresses as userdata “eMail” in the rule block. This means if you have an email address defined as an attribute on a managed entity, then the following syntax in the rule can be used to pass the email address to the email.pl action script:

userdata "eMail" attribute "Your_email_attribute_name"

For example, the “_EMAIL-TO” managed entity attribute contains 2 email addresses.

Then in the rule block, the email addresses can be passed to the Email_pl action script like below:

userdata "eMail" attribute "_EMAIL-TO"
severity critical
run "Email_pl"