I'm trying to figure out why recipients of emails from my company show that the mail is coming from our dedicated wan ip instead of the ip alias setup thru the dedicated wan.
The domain is mail.unitechsubsea.com
The external ip address for the sa540, wan1 (no optional interface), is 188.8.131.52
The ip alias is 184.108.40.206
mail.unitechsubsea.com resolves to 220.127.116.11 for external dns yet it is reporting as the 18.104.22.168 for some recipients.
The mail server was never setup with the 22.214.171.124 ip so i don't think this is a dns cache issue.
What issue in the SA540 would cause the system to show as mail coming from 126.96.36.199 instead of the ip alias 188.8.131.52?