This model uses the SendMail actor to send email to a list of recipients given
in a comma-separated values file. The output of the CSVReader is a record,
where the field names are given by the first line of the CSV file. The StringReplace
actor is used to customize a standard message by replacing the word "Colleague"
with the value of the "First Name" field of the record.
This model does not actually send mail. If you wish to modify it to send mail,
change the CSV file, set the SMTP host and user names in the SendMail actor, and
change the reallySendMail parameter of the SendMail actor to true. Note that the
SendMail actor will only work with SMTP servers using TLS, which ensures that
passwords are encrypted.