Код:

Jan 14 16:08:10 gipernet exim[1593]: SMTP connection from (mail.domain.eu) [127.0.0.1] I=[127.0.0.1]:25 closed by QUIT
Jan 14 16:08:11 gipernet exim[1594]: 1PdkK2-0000Ph-Jr == imja@gmail.com R=dnslookup T=remote_smtp defer (-53): retry time not reached for any host

Код:

# telnet smtp.apollo.lv 25
Trying 80.232.168.216...
Connected to smtp.apollo.lv.
Escape character is '^]'.
220 mgw1.apollo.lv ESMTP
quit
221 2.0.0 Bye
Connection closed by foreign host.

Код:

Checking Port 25 on target machine: xx.xx.xx.xx
Port 25 is open and accepting connections.

Код:

SMTP Open-Relay results check for: xx.xx.xx.xx port 25

xx.xx.xx.xx 220 mail.gipernte.eu, ESMTP EXIM 4.72
xx.xx.xx.xx requires HELO: NO
xx.xx.xx.xx allows VRFY username verification: NO
xx.xx.xx.xx allows EXPN forwarding expansion: NO
xx.xx.xx.xx allows bogus From: header: YES
xx.xx.xx.xx allows mail relaying: NO
xx.xx.xx.xx can mail to postmaster: NO
xx.xx.xx.xx can mail to webmaster: NO
xx.xx.xx.xx can mail to abuse: NO
xx.xx.xx.xx - 27 seconds

Код:

# telnet RELAY.mai.ru 25
Trying 217.9.84.135...
telnet: connect to address 217.9.84.135: Operation timed out
telnet: Unable to connect to remote host

Код:

# telnet mx.yandex.ru 25
Trying 213.180.204.89...
telnet: connect to address 213.180.204.89: Operation timed out
Trying 77.88.21.89...
telnet: connect to address 77.88.21.89: Operation timed out
Trying 87.250.250.89...
telnet: connect to address 87.250.250.89: Operation timed out
Trying 93.158.134.89...

Код:

tcp4       0      0 *.25                   *.*                    LISTEN