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pendrive 04-01-2012 09:02 AM

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:


telnet localhost 25
on the server shell, it do great. while when I come to do telnet from a remote client,


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 contents:


# See /usr/share/postfix/ 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_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 =
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination =, localhost
relayhost =
mynetworks = [::ffff:]/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 and the_server_ip are changed for security stuff.

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

inet_interfaces = all

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:

it means postfix is not bound to only

and finaly my postfix version is:


mail_version = 2.7.0
I don't know what to do more, so for the love of god, any ideas ??!!!!!!????????

jaybutts 04-01-2012 09:09 AM

Is it open to world on the firewall? type iptables -L -vn

pendrive 04-01-2012 11:31 AM

thanks for the reply jaybutts

As I said, I made iptables pass every thing and besides, telnet connections takes effect (that shows us there is no iptables problem), but it sounds smtp server refuse the connections

pendrive 04-06-2012 08:16 PM

few days ago I fixed this, you know, I did mistake in putting my network address in and I putted the ip address, and the other one was in double putting my hostname in the mydistination entry and in the vmail files. its solved now

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