295006Re: Disabling user submission on port 25
- Aug 26, 2013On 26 Aug 2013, at 21:24 , John Allen <john@...> wrote:
> remove the permit_mynetworks from all the various smtpd_xxxx_restrictions stanzas of main.cf. Then modify the master.cf by addingThat seem like a bit much. I allow the web-server (which hosts the webmail) in mynetworks, since users mailing from there are already authenticated. I can see there are situations where it would be a good idea.
> -o smtpd_client_restrictions=hash:Deny_Mynetworks_Access,.....
> to the smtp service, and add
> -o smtpd_client_restrictions=permit_mynetworks,.....
> to the submission service.
> This should deny access to the smtp port (25) from the local networks while allowing access to the submission port (587).
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