Hello As I mentioned I am able to send email to external gmail recipient when I connect to localhost through telnet. Thus the port: 25 can't be closed/blocked for outgoing traffic, right?
If I nmap locahost (25 is open) If I nmap cineserver.3p.tuc.gr (FQDN) (25 is closed... I tried to open through iptables ... no luck) , but that can't be the problem when *sending*email. I suppose it would be a problem for *receiving* emails... right? Btw if I netstat -tulpn | grep :25 tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 3506/exim4 tcp 0 0 147.27.23.52:25 0.0.0.0:* LISTEN 3506/exim4 tcp6 0 0 ::1:25 :::* LISTEN 3506/exim4 so exim daemon is listening through 25 , it can't send trhough other port i suppose :P Anyway I can create users manually or let it open I suppose :)
