[Sysadmins] telnet: connect to address : No route to host

[Сергій Маламура]

Hi ,
Пробую:

# telnet smtp.mail.net 25
Trying 162.149.82.161...
telnet: connect to address 162.149.82.161: No route to host
# telnet mail.org.ua 110
Trying 212.212.128.128...
Connected to mail.org.ua.
Escape character is '^]'.
+OK Dovecot DA ready.
quit
+OK Logging out.
Connection closed by foreign host.
# telnet mail.org.ua 25
Trying 212.212.128.128...
telnet: connect to address 212.212.128.128: No route to host

Почему так? Кого я сломал?