Send email content only to contacts who have opted in to receive it
When contacts have customised what type of emails they want to receive, you can use the preferences option to make sure they only receive that email content.
This feature relies on List Preferences being configured.
To target specific contacts with the content they have chosen to receive, during the sending process you choose an 'Advanced selection'.
In the first drop down box, select 'Preferences' and then the desired selector from the second drop down box. The third option will show previously set up List Preferences which can be selected to target specific contacts.