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Old 1st May 2013, 10:01
a3das a3das is offline
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Default Postfix refude to send email

(Postfix version) /etc/postfix/main.cf.default:mail_version = 2.3.8

(OS Version) bash-2.03#uname -a SunOS blade 5.8 Generic_108528-17 sun4u sparc SUNW,Sun-Blade-100

(changed configs)

bash-2.03# postconf -n
alias_database = dbm:/etc/aliases
alias_maps = dbm:/etc/aliases
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = imss:localhost:10025
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
debug_peer_list =
default_process_limit = 200
html_directory = no
local_recipient_maps =
mail_owner = postfix
mailq_path = /usr/bin/mailq
manpage_directory = /usr/local/man
message_size_limit = 10240000
mydestination = yahoo.com, localhost, localhost.$mydomain, $myhostname
mydomain = eska.com
myhostname = blade.eska.com
mynetworks =,,
mynetworks_style = class
myorigin = $myhostname
newaliases_path = /usr/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = /postfix.old/postfix-2.3.8/readme_directory
relay_domains = $mydestination
relayhost = $mydomain
sample_directory = /etc/postfix
sendmail_path = /usr/lib/sendmail
setgid_group = postdrop
unknown_local_recipient_reject_code = 450
when i try to send an email to Gmail i get this response, which means that postfix tends to look for gmail server in loop-back network. this will fail always. response is below

sendmail xxxx@gmail.com <"tst"
<eska.hala@gmail.com>: connect to localhost[]: Connection refused
Content-Description: Delivery report
Content-Type: message/delivery-status
Reporting-MTA: dns; blade.eska.com
X-Postfix-Queue-ID: 970FE58DA
X-Postfix-Sender: rfc822; root@blade.eska.com
Arrival-Date: Wed, 5 Dec 2012 11:06:09 +0200 (Asia/Amman)
Final-Recipient: rfc822; eska.hala@gmail.com
Action: delayed
Status: 4.4.1
Diagnostic-Code: X-Postfix; connect to localhost[]: Connection refused
when i use what-if-mode , postfix will actually go and search for gmail server and finds it, and confirm the deliverablity of this email. response is below:

sendmail -bv xxxx@gmail.com <"test"
Dec 5 10:57:52 blade postfix/smtp[15906]: [ID 197553 mail.info] 6447958DA: to=<eska.hala@gmail.com>, relay=gmail-smtp-in.l.google.com[]:25, delay=1.8, delays=0.08/0.03/1.5/0.26, dsn=2.1.5, status=deliverable (250 2.1.5 OK u8si15432094wiw.9)
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