internal and external ips conflict

[AAB]

Hi,

The servers have internal and external IPs. How can I force roundcube to use the internal IP to connect to the email server.

For example, connect the web server from 192.168.1.2 to the email serve 192.168.1.3

At this moment, if I have  the default host to be 192.168.1.3, it will try to connect using the external IP of the web server.

From the error log "Login failed for [email protected] from (external IP). Could not connect to 192.168.1.3:143"

Using the external IP is not an option, as the router doesn't like it.

Cheers,