Hi,
I have Exchange 2016 and I am having an issue with few users whose mailboxes are getting quarantined repeatedly. Following are the methods I tried to resolve this issue but none of them worked for me. User count is getting increased day by day. Could anyone please advise me on this?
Disable-MailboxQuarantine "UserName"
Deleted the registry key in below path.
HKLM\SYSTEM\CurrentControlSet\Services\MSExchangeIS\<ServerName>\Private-{dbguid}\QuarantinedMailboxes{mailbox guid}
Our exchange has no antivirus
Regards,