Nginx mail starttls ip based

Server NGINX
1

Hello,

I’m new in nginx world. I would like to configure a single nginx server
to proxy imap/pop servers with starttls option.

I would like that the “starttls” could be “on” on a list of known safe
IPs
and “only” on other IPs. Using the same listen port and protocol.

Could you tell me how to achieve this?
Maybe, is there a way to set the starttls in auth phase?

For instance, let suppose I have configured this:

server {
listen 110;
protocol pop3;
starttls on;
proxy on;
}

server {
listen 110;
protocol pop3;
starttls only;
proxy on;
}

I would select first or second server block using Client-IP header.
Is it possible?

Thanks a lot.
Best Regards
Marco

2

Hello!

On Tue, Dec 11, 2012 at 10:14:05AM +0000, Marco wrote:

listen     110;
protocol   pop3;
starttls    only;
proxy       on;

}

I would select first or second server block using Client-IP header.
Is it possible?

No. Either use “starttls only” for all clients, or configure
different servers on different ip addresses/ports.

–
Maxim D.