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Old 11-08-2010, 04:38 AM   #1
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Registered: Nov 2010
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Question Postfix don't sending/receiving anything

Hi, i have one issue. Yesterday i run a postfix everything works fine and today it hangs up.
if i dial "telnet localhost 25" i get (before day i get 220 answer and ordinary hello):
Connected to
Escape character is '^]'.
and nothing go far.
i havent firewall on, router is forwarding 25 port to
try to check my configs if i missed something:
sudo postconf -n:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
inet_interfaces = all
inet_protocols = ipv4
mailbox_size_limit = 0
mydestination =, trons, localhost.localdomain, localhost, mail.localdomain
mydomain =
myhostname =
mynetworks = [::ffff:]/104 [::1]/128
myorigin = /etc/mailname
readme_directory = no
recipient_delimiter = +
relayhost = 
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
sudo netstat -tupan:
tcp        0      0*               LISTEN      1050/mysqld     
tcp        0      0   *               LISTEN      862/smbd        
tcp        0      0    *               LISTEN      1243/apache2    
tcp        0      0*               LISTEN      1057/hddtemp    
tcp        0      0    *               LISTEN      972/sshd 
tcp        0      0    *               LISTEN      6650/master     
tcp        0      0   *               LISTEN      862/smbd
tcp        0      0       CONNECTED    -               
tcp        0      0        CONNECTED    6854/telnet     
tcp        0      0       CONNECTED    -               
tcp        1      0       CLOSE_WAIT  -               
tcp        1      0           CLOSE_WAIT  -
Thanks i very appriciated!
Old 11-08-2010, 05:10 AM   #2
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Registered: Apr 2008
Location: Nagpur, India
Distribution: Cent OS 5/6, Ubuntu Server 10.04
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Your server seems to be running and listening. That is the escape sequence that you see. If you type Control key + ] you will get the telnet prompt.
Old 11-08-2010, 05:23 AM   #3
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Registered: Nov 2010
Posts: 2

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thanks for answer, yes it seems but i didn't get any SMTP response code 220, it just stuck at that escape line. Thats Wrong isn't it?


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