Hi
We have Outlook desktop clients connected with Exchange 365 backend.
We have a very peculiar issue that all email to one mailbox is being forwarded to an external contact and we can't find out why. The forwarded emails have a FW: in subject and are saved in Sent Items of the sending mailbox so its probably not being done by Exchange rather one of the Outlook clients? I did check in Exchange and there is no forwarding rule when using;
Get-Mailbox -ResultSize Unlimited -Filter "ForwardingAddress -like '*' -or ForwardingSmtpAddress -like '*'" | Select-Object Name,ForwardingAddress,ForwardingSmtpAddress
We have also checked Outlook clients and have not been able to find any rule that does the forwarding.
Any clues as to where should I look for this forwarding?
Thanks
Regards