Hello,
I am using Astaro ASG120, i have some issues with Email Security.
We have a real IP and the external interface of Astaro. We get a domain name, because we want to host our own mail server. Now it's located on the DMZ (Third Interface Card).
I try to enable the SMTP and POP3 under "Email Security", the users can send emails send to the outside but can't receive any emails. I define my Email domains and The Internal Server with Transparent Mode, but nothing works.
Now, i try to solve the Problem, but i don't think it's the right way.
I disable the SMTP and POP3 under "Email Security".
I create a DNAT for Mail server (Port 25 and 110) forwarded to Mail Server, Now everything works fine. But i don't think i will protected from spam and antivirus.
Any help is highly appreciated.
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