Most companies send out marketing emails to their customers and
prospects, and need a way to allow them to unsubscribe from your email
messages. This sample code shows how you can write Force.com Email
Services to process unsubscribe requests from the email recipients.
- The code will search in the subject line for the word “unsubscribe”
- If the words is found, I will first find all contacts who
matches the from Email Address and set the HasOptedOutOfEmail to true - Then I search though the Leads and look for the same email address and updates the HasOptedOutOfEmail to true as well
- The code then returns true and exists