.net Coding for Read, unread, delivered, undelivered and unsubscribe in bulk email system

We are developing Bulk email system in .Net. The email will be sent using client outlook server using the company email ID which has no limitations on numbers of emails outgoing. We are stuck in getting the Read, Unread, delivered, undelivered email in our Log sheet and also we need to have Unsubscribe/Preference options in the mailing list and once people unsubscribe we need to get that reports in our dashboard of Unsubscribe list. also option to keep preference list if possible. Team is professional and fully equipped to develop but got stuck in this coding if you have the readymade coding to implement in the system then only quote. WIth minor modification the coding is ready to be implemented. Even team will work on that coding to check compatability, just share those coding only