Our Exchange header shows our firewall IP for the received IP instead of the senders IP. As seen below, psm.knowbe4.com received IP shows up as the internal firewall IP.
We are using a single server for all Exchange 2010 services and a virtual IP mapping the public IP to the internal IP.
Received: from psm.knowbe4.com (192.168.X.X) by webmail.lethlib.ca
(192.168.X.X) with Microsoft SMTP Server (TLS) id 14.3.498.0; Fri, 27 Aug
2021 10:50:36 -0600
If anyone has an idea on how to correct this or can point me in the right direction I would appreciate it.