There is a user firstname.lastname@example.org. She receives email correctly from both internal and external people correctly. We have a Multi Function Network Printer/Scanner. If you scan you can have it email the scan to you. This also worked correctly until recently. Her email is working correctly with the exception of this.
In Exchange if I check the message tracking it shows the email as having come from email@example.com going to firstname.lastname@example.org but the email never turns up in her inbox.
I have disabled all rules on her account and I have also logged in using OWA to ensure that it is not a Cache issue but the email is nowhere to be found.
While this seemed strange it was one isolated case however I now have another customer who without any interaction I am aware of on the server he suddenly stopped receiving email to his mailbox, any email. I can log on to the mailbox and I can track the message as getting there but there is no email. I have also checked this using OWA to ensure it not a cached file corruption.
Any ideas on further steps to fault find or what the issue may be?
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