SMG failed to deliver reports to mailbox of administrator in the same domain. But the mail box in other donmains will receive the reports normally.
An error was encountered while trying to email your report. Please check the system configuration and try again.
Inappropriate settings in the Control Center.
In Adminitrations---Control Center---SMTP---Define New Host, configuration should be modified. Using a Non-local relay settings to deliver reports to local mailbox is inappropriate.
Add the internal Mail Server IP address and port in the location.
Then the BCC could send reports and alerts normally.