Can't send mails outside using postfix - linux

Question

I have below server:
[root#SR5S2]# uname -a
Linux SR5S2 2.6.16.60-0.74.7-smp #1 SMP Fri Nov 26 09:16:10 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
[root#SR5S2]#
I've configured
/etc/postfix/main.cf
file like this (i've removed here all comments to make it reding easier):
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
mydomain = EXCHANGESERVER.COM
myorigin = EXCHANGESERVER.COM
inet_interfaces = localhost
mydestination = 10.220.1.1
unknown_local_recipient_reject_code = 550
relay_domains = 10.220.1.1
relayhost = 10.220.1.1
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
debug_peer_level = 2
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
ddd $daemon_directory/$process_name $process_id & sleep 5
sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases
mailq_path = /usr/bin/mailq
setgid_group = maildrop
html_directory = /usr/share/doc/packages/postfix/html
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/packages/postfix/samples
readme_directory = /usr/share/doc/packages/postfix/README_FILES
inet_protocols = all
biff = no
mail_spool_directory = /var/mail
canonical_maps = hash:/etc/postfix/canonical
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_alias_domains = hash:/etc/postfix/virtual
relocated_maps = hash:/etc/postfix/relocated
sender_canonical_maps = hash:/etc/postfix/sender_canonical
masquerade_exceptions = root
masquerade_classes = envelope_sender, header_sender, header_recipient
myhostname = EXCHANGESERVER.COM
program_directory = /usr/lib/postfix
defer_transports =
relayhost = 10.220.1.1
mailbox_command =
mailbox_transport =
strict_8bitmime = no
disable_mime_output_conversion = no
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_helo_required = no
smtpd_helo_restrictions =
strict_rfc821_envelopes = no
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
smtp_sasl_auth_enable = yes
smtpd_sasl_auth_enable = no
smtpd_use_tls = no
smtp_use_tls = no
mailbox_size_limit = 0
message_size_limit = 10240000
I restarted postfix service with
/etc/init.d/postfix restart
But when i am trying to send mail (tried with sendmail, mail and mailx with exactly same result) I am geting below message in /var/log/mail:
Apr 19 17:43:47 SR5S2 postfix/pickup[15543]: A74F5DEC74: uid=0 from=<root>
Apr 19 17:43:47 SR5S2 postfix/cleanup[25616]: A74F5DEC74: message-id=<20170419134347.A74F5DEC74#EXCHANGESERVER.COM>
Apr 19 17:43:47 SR5S2 postfix/qmgr[15544]: A74F5DEC74: from=<root#EXCHANGESERVER.COM>, size=344, nrcpt=1 (queue active)
Apr 19 17:43:47 SR5S2 postfix/qmgr[15544]: A74F5DEC74: to=<MAIL#EXCHANGESERVER.COM>, relay=none, delay=0.04, delays=0.03/0.01/0/0, dsn=4.3.0, status=deferred (mail transport unavailable)
Which states that relay wasn't configured. But the thing is that as it can be seen from abouve main.cf - it is configured.
Any clues why I am getting this error? Where to look to fix this problem? Spent already 2 days on this issue and no any success :(
Here is the output from postconf -n:
[root#SR5S2]# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
biff = no
canonical_maps = hash:/etc/postfix/canonical
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/lib/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
defer_transports =
disable_dns_lookups = no
disable_mime_output_conversion = no
html_directory = /usr/share/doc/packages/postfix/html
inet_interfaces = 10.10.10.10
inet_protocols = all
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_command =
mailbox_size_limit = 0
mailbox_transport =
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_exceptions = root
message_size_limit = 10240000
mydestination = 10.220.1.1
mydomain = EXCHANGESERVER.COM
myhostname = EXCHANGESERVER.COM
mynetworks_style = subnet
myorigin = azerconnect.az
newaliases_path = /usr/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/packages/postfix/README_FILES
relay_domains = 10.220.1.1
relayhost = 10.220.1.1
relocated_maps = hash:/etc/postfix/relocated
sample_directory = /usr/share/doc/packages/postfix/samples
sender_canonical_maps = hash:/etc/postfix/sender_canonical
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtp_sasl_auth_enable = yes
smtp_use_tls = no
smtpd_helo_required = no
smtpd_helo_restrictions =
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
smtpd_sasl_auth_enable = no
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_use_tls = no
strict_8bitmime = no
strict_rfc821_envelopes = no
unknown_local_recipient_reject_code = 550
virtual_alias_domains = hash:/etc/postfix/virtual
virtual_alias_maps = hash:/etc/postfix/virtual
[root#SR5S2]#

Answer 1

inet_interfaces = localhost
Change this to your ip.

Answer 2

when you reload postfix do you get any errors in /var/log/mail specific to reload action?
you should see something as there is duplication of smtpd_sasl_auth_enable as a minimum with opposite options
Also do all properties file have .db's generated for them? I am sure you know it, but just in case "postmap filename"
This main.cf looks a bit messy, are you sure you need all this enabled in there? I would try to tidy up this and enable only what is for sure known and required.