[courier-users] Relaying and smtp authentication (ssl vs. non-ssl)

Hi,

I'm having some trouble figuring out the best way to achieve my aims.
Current situation: I have esmtpd accepting mail from outside my network
and delivering it correctly, and it also relays for internal clients
(i.e. those on 192.168.). I don't have authentication required.

I'd like to add esmtpd-ssl, expose it to the ouside world and relay
mail for any authenticated users, which seems to imply that I need to
do two things:
(a) Add AUTH_REQUIRED=1 to my esmtpd-ssl config file.
(b) Allow relaying for external clients in smtpaccess. This seems to
imply I need a different smtpaccess file for esmtpd and esmtpd-ssl
otherwise the non-ssl one (without authentication) will become an open
relay. Can this be done?

Reading through the documentation I am also unclear on this one, a
possible workaround: If I set AUTH_REQUIRED in my normal esmtpd config
file, will that prevent mail delivery to my local accounts from external
relays? It seems that this is the case, otherwise I'd just force
authentication on all ports.

Thanks for any pointers,

Matt.

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