On 2022-03-13, The Doctor via Exim-users <[email protected]> wrote:
> I was wonder if it is doable that the outside world
> can only see ports 587 and 465
> while limiting port 25 to localhost only.
assuming 192.0.2.44 is "the outside world" ip address.
in main configuration:
daemon_smtp_ports = 25 : 587 : 465
local_interfaces = <; 127.0.0.1 ; ::1 ; [192.0.2.44]:587 ; [192.0.2.44]:465
drop the ::1 entry if you don't have ipv6
explanation here:
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-starting_the_daemon_and_the_use_of_network_interfaces.html
--
Jasen.
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