Hi, This is my requirement
In the newsletter mails, we need to give users the option to opt-out of the newsletter mails while not being blacklisted. Create a web app to do this and create a personalization block to add the URL to the newsletter delivery
I have created a web application , a Delivery template, and a personalization block for this and running a campaign in which I have inserted a web application unsubscription link. Subscribed recipient is getting mail after running a campaign
![Mrityunjay_0-1655917734639.png Mrityunjay_0-1655917734639.png](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/42201i4FE2E91B6B5E42C7/image-size/medium/is-moderation-mode/true?v=v2&px=400)
and after clicking on the unsubscription link it redirects to
![Mrityunjay_1-1655917794780.png Mrityunjay_1-1655917794780.png](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/42202i87CE437C1DD6545F/image-size/medium/is-moderation-mode/true?v=v2&px=400)
and after checking the checkbox and clicking the unsubscribe button I am getting this error
![Mrityunjay_2-1655917861732.png Mrityunjay_2-1655917861732.png](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/42203i72A0D2724EE61E25/image-size/medium/is-moderation-mode/true?v=v2&px=400)
Can anybody help me with this, also please let me know how to check if the recipient has been unsubscribed. Immediate help will be highly appreciated