As Sathees mentioned, the code has nothing to do with AJO. This is an industry standard code for all emails
{
"List-Unsubscribe-Post": "List-Unsubscribe=One-Click",
"List-Unsubscribe": "<mailto:unsubscribeexampexample@example.com>, <https://www.unsubscribe.example.com/>"
}
Support for list-un...