We have a small development environment where we have multiple set ups of the same solution repeated.
In each solution is an Exchange server providing the mail functionatily and each solution is set up as completely different public domains .i.e. (1) www.acb1.com
All of these solutions are set up behind one firewall, with different public IP's mapped to each.
Email is workign fine from to and from other domains on the internet. However, we are having trouble working out a way for email to work between the 3 domains on the inside of the firewall.
Has anyone come accross a similar problem?
Does anyone know a way to achieve being able to email Public domains on the internet and internall too?