I've tried the changes that I put below. Users are still able to log in from
the LAN.
However, despite putting the appropriate rule in my firewall allowing port 143
I cannot create a user on a PC outside my network.
I'm using Thunderbird to do the testing. Is there a better way to test my
setup? Thunderbird doesn't give any diagnostic data, it just says it's
failed to test the account.
On Thursday 05 May 2016 11:03:34 Gary Stainburn wrote:
> I have a mail server running on Centos 7.2 which has been working for my
> LAN for a long time.
>
> I'm at the point where I have to make it accessible to the internet. At
> the moment, access can be insecure but as it's on my LAN it isn't an issue.
>
> However, for internet access I wish to force SSL/TLS. Having read the
> documents I think it's as simple as changing 10-ssl.conf from
>
> ssl = yes
>
> to
>
> ssl = required
> remote 10.0.0.0/8 {
> ssl = yes
> }
>
> Am I right in thinking that this would make the global value now force
> SSL/TLS to be required, but for my LAN (10.0.0.0/8) override this with the
> old value of 'yes'
>
> Is there a better way to do this?
> Have I missed anything?
> I believe that this means implies
>
> disable_plaintext_auth = no
>
> for all except my LAN. Is that right?
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--
Gary Stainburn
Group I.T. Manager
Ringways Garages
http://www.ringways.co.uk