Sometimes when I click on the unsubscribe links of emails I am taken to a page where there's a list of newsletters to unsubscribe from. Other times, the page only allows me to unsubscribe from one topic and has no list. Why is that?
The unsubscribe link takes constituents from the Constituent Email Preference Page. This page will allow the constituent to unsubscribe from any Interest Opt-In associated with the Email Campaign for the email message. If there are no Interest Opt-Ins associated show the list of options.
To associate an Interest Opt-In with the Email Campaign:
Navigate to Email > Email Campaigns > Campaigns tab