Hello everyone,
after having encountered a bounce issue with a german ISP, we took a look at the delivery logs to see if the issue has been resolved.
We noticed a behaviour that we cannot make any sense of:

This recipient received a couple of emails from 07/30/2020 to 10/04/2020. The last email has been sent on 10/04/2020 05:57:07 AM.
What we don't understand is why the delivery started on 09/19/2020 (first line on the screenshot) has been modified in the delivery logs on 10/06/2020 - which is 17 days after the sendout of the delivery. In the settings of the delivery template the option is set to "Delivery duration: 5d", so from my understanding the delivery logs shouldn't be updated any more after those 5 days?
We would be thankful for any hint on why the delivery logs had been updated after such a long time!
Kind regards, Marcel