We have two limited networks connected through a router r1. One network is in the 10.100.1.0/24 and is also connected to the outside through an asa5505. Our networks are not registered in the internet. However, i am able to send emails from this network using smtp.gmail.com smtp server.
We have another network 192.168.0.0/24 conected to the 10.100.1.0/24 network through router r1. From this network we have a server 192.168.0.5 to send event emails. When i go to this server, from the cmd I am able to ping the smtp.gmail.com server but i can't send emails. I get a message that says unable to contact server