All mails in the archive are shown as Outgoing mails

Why are all outgoing mails in the archive marked as outgoing mails? (Archive list - red arrow pointing to the left)

Is an upstream mail relay which delivers the mail to the REDDOXX in use? Or a firewall with SMTP service or a POP3 mail collector?
This device/IP address may not be entered in the Local Networks.
Make sure that this device is not included within an other defined subnet.

For single devices, the netmask for the devices/IP addresses found in the Local Networks needs to be: (4 x 255).