One of our clients complains that he had 300 mails in his inbox and hours later, all were gone! disappeared!
This has never happened before and we explained that there could only be two ways in which they could disappear.
1. If they download them to a computer
2. If they were deleted from the server by someone manuallly.
But how to prove that they did not disappear by a server error? Is there a log in which we could know if they were downloaded or deleted manually?
Thanks in advance.