We have unfortunately unsubscribe the notification from the firstname.lastname@example.org. My question is that it is happened for all domain which is registered with the same email ID or only one domain for which we have been notified. We have lots of domain registered with the same email ID.
I have explored my issue regarding-the-re-subscription-for-expire-notification. I found that we not need to change the email ID from the server using the command line. The mandrill app have blacklisted the email for sending the email notification.
Kindly please look in to this matter because it is very serious concern and i have thousand of domain running on lets encrypt ssl