I have an exchange server in my domain that I wanted to replace with new hardware, although my new server crashed shortly after installing exchange on it.
Old server is still up and running but I have problems receiving mails on it, I removed dead server from AD and every place I could find it, but it still shows up in server configuration in exchange console (Hub transport role, Client transport role)
I’m guessing that’s where my problem lies with not being able to receive emails on old server anymore.
It actually says it cannot open port 25 on old server, tried switching it to 26 but alas no success, firewall is configured and exceptions are in place. It worked fine before installation of that server. I’m using pve/pop3 collector.
Any help would be appreciated, I just don’t know what to do anymore.