Hello,

I tried to setup NGiNX as a Mail Proxy for two domains behind NAT. Users will be diverted to the right server base on domain (eg./ user@domainA.com will be diverted to Server A and user@domainB.com will be diverted to Server B).

When I test the nginx.conf it gives me the following:

"nginx: [emerg] duplicate "0.0.0.0:143" address and port pair ..."

After some digging, I know that the listen directive need to have different address:port pair but reuseport option is not allow in mail context.

Is there a way to overcome or achieve that? Please Help! TIA!


Regards,
YSC