We have a Cobalt Qube3 on our internal LAN; it is acting as our email server. The Qube only has an internal IP address. We recently installed an Astaro software solution V6. We are using the SMTP proxy to relay messages for the Qube.
Everything is working fine, but, I have some concerns about the email headers. When we send emails, the headers contain the internal LAN IP of the originating workstation and the LAN IP of the Qube.
Is this normal? It feels like we are emailing too much information about our LAN structure. I would prefer that recipients only see the Public IP of the Astaro, which is where our MX record points.
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