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SMTP-Proxy listening on specific interfaces only

Suppentrulli
Hey guys,

why isn't it possible to define on which interfaces the smtp-proxy is listening? I think it is a security-issue to have the proxy always open on all ports.

I know that it is possible to restrict the use of it to specific users/networks, but anyway, the proxy answers on port 25 and reveals its name. And it is one port more that is open on my external interface :-(

Any solutions (packetfilter does not work, proxies have priority) or plans to add this feature?


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  • 0
    Hi,
    that is a strange request. How does your external e-mail get delivered to your internal users/server?

    The request does have some merit when using things like DMZ or other networks where you want to stop a port, but not the external interface.

    Ian M

    XG115W - v20.0.3 MR-3 - Home

    XG on VM 8 - v21 GA

    If a post solves your question please use the 'Verify Answer' button.

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  • 0
    Hi,
    that is a strange request. How does your external e-mail get delivered to your internal users/server?

    The request does have some merit when using things like DMZ or other networks where you want to stop a port, but not the external interface.

    Ian M

    XG115W - v20.0.3 MR-3 - Home

    XG on VM 8 - v21 GA

    If a post solves your question please use the 'Verify Answer' button.

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