Linking an email to a Contact when the email is sent in deluge via sendmail

Linking an email to a Contact when the email is sent in deluge via sendmail

The "to:" address in this code is a CRM Contact. Email address is forced unique in CRM

This sendmail gets sent via a workflow which is in a custom module.

It works, except that the outbound email does not appear (i.e, get linked to) the Contact such that the email would appear in the Contact's email related list. 

Is there a way to manually code that connection?

  1. sendmail
  2. [
  3. from :"hello@world"
  4. to :email_to
  5. cc:reply_to
  6. bcc: "acme@acme.com"
  7. reply to :reply_to
  8. subject :"Balance Due"
  9. message :email_content
  10. ]