> > > > > > Can you reach localhost by "normal" means? > > > > telnet localhost 25 > > > > > > I cannot. > > > > > > Can you share the specific output of the command? It might help. From > > what you've told us, localhost resolves to the IPv6 local address, and > > that address is present on your "lo" device. You *should* be able to > > connect. The type of error might indicate what is still wrong with the > > system. > > > > Trying 71.28.79... > telnet: connect to address 184.108.40.206: Connection timed out > So are you saying that if you do 'telnet localhost 25' it actually tries to connect to '220.127.116.11'? If so, then that seems to indicate that host lookups are still being done primarily through DNS and it isn't looking in your /etc/hosts file. What happens if you do telnet 127.0.0.1 25 what about telnet ::1 25 P.