LinuxQuestions.org - Problem in making postfix to work out of the localhost

Hi all
I've installed a postfix mail server in my ubuntu server and it's work fine for localhost, I mean when I issue:

Code:

telnet localhost 25

on the server shell, it do great. while when I come to do telnet from a remote client,

Code:

telnet server_ip 25

it connects for a wile and without prompting the postfix output, it falls to disconnect.

even I do the telnet server_ip 25 in the server shell and it fails the same way.

here is my main.cf contents:

Code:

# See /usr/share/postfix/main.cf.dist for a commented, more complete version





# Debian specific:  Specifying a file name will cause the first

# line of that file to be used as the name.  The Debian default

# is /etc/mailname.

#myorigin = /etc/mailname



smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)

biff = no



# appending .domain is the MUA's job.

append_dot_mydomain = no



# Uncomment the next line to generate "delayed mail" warnings

#delay_warning_time = 4h



readme_directory = no



# TLS parameters

smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem

smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key

smtpd_use_tls=no

smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache

smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache



# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for

# information on enabling SSL in the smtp client.



myhostname = some_domain_name.com

alias_maps = hash:/etc/aliases

alias_database = hash:/etc/aliases

myorigin = /etc/mailname

mydestination = some_domain_name.com, localhost

relayhost =

mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 the_server_ip/24

mailbox_size_limit = 0

recipient_delimiter = +

inet_interfaces = all



#

# I added For virtual mailbox and users

#

virtual_mailbox_domains = /etc/postfix/vhosts

virtual_mailbox_base = /home/vmail

virtual_mailbox_maps = hash:/etc/postfix/vmaps

virtual_minimum_uid = 1000

virtual_uid_maps = static:5000

virtual_gid_maps = static:5000

inet_protocols = all

as you know some_domain_name.com and the_server_ip are changed for security stuff.

As I get in the internet, people are just taking care of the

Code:

inet_interfaces = all

and

Code:

mynetworks=

for making postfix do on remote case, but I think mine is good. and besides my iptables is not seem to be the cause, I made them pass every thing and after telnet I connects for a while,

and the netstat output shows me:

Code:

0.0.0.0:25

it means postfix is not bound to 127.0.0.1 only

and finaly my postfix version is:

Code:

mail_version = 2.7.0

I don't know what to do more, so for the love of god, any ideas ??!!!!!!????????