PersistIQ gives you the option to customize everything except the opt-out link in your "Opt out statement".
Step 1. Find your initials in the bottom left hand corner and go to "Setting and Billing"
Step 2: Click on "Mailbox":
Step 3: Scroll down to the "Opt out Statement" heading:
Step 3: Customize the anything in the statement outside of the hyperlink with the wording you would like:
Step 4: Check the "Include opt-out statement in emails" box:
Step 5: Click "Save" once finished: