Unfortunately after some changes on master.cf and main.cf in postfix I'm getting these errors when I try to send out a e-mail.
root@mail:/etc/postfix# tail -f /var/log/syslog | grep "rene.brakus@gkri.hr"
Jul 25 17:39:46 mail dovecot: auth-worker(2529): Debug: sql(rene.brakus@gkri.hr,193.198.1.XX): query: SELECT password FROM mailbox WHERE username = 'rene.brakus@gkri.hr' AND active = '1'
Jul 25 17:39:46 mail dovecot: auth: Debug: client passdb out: OK#0111#011user=rene.brakus@gkri.hr
Jul 25 17:39:46 mail postfix/smtpd[8289]: NOQUEUE: filter: RCPT from mail.gkri.hr[193.198.1.XX]: <rene.brakus@gkri.hr>: Sender address triggers FILTER smtp:[127.0.0.1]:10025; from=<rene.brakus@gkri.hr> to=<rene.brakus@gkri.hr> proto=ESMTP helo=<mail.gkri.hr>
Jul 25 17:39:47 mail postfix/smtpd[8289]: NOQUEUE: reject: RCPT from mail.gkri.hr[193.198.1.XX]: 451 4.3.5 Server configuration problem; from=<rene.brakus@gkri.hr> to=<rene.brakus@gkri.hr> proto=ESMTP helo=<mail.gkri.hr>
this is my master.cf
#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (100)
# ==========================================================================
# smtp inet n - - - - smtpd -v
submission inet n - - - - smtpd
-o smtpd_enforce_tls=no
-o smtpd_use_tls=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
-o smtpd_data_restrictions=reject_unauth_pipelining
-o receive_override_options=
# -o smtpd_tls_security_level=encrypt
# -o milter_macro_daemon_name=ORIGINATING
smtps inet n - - - - smtpd
-o smtpd_tls_wrappermode=yes
-o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - - - - qmqpd
pickup fifo n - - 60 1 pickup
cleanup unix n - - - 0 cleanup
qmgr fifo n - n 300 1 qmgr
tlsmgr unix - - - 1000? 1 tlsmgr
rewrite unix - - - - - trivial-rewrite
bounce unix - - - - 0 bounce
defer unix - - - - 0 bounce
trace unix - - - - 0 bounce
verify unix - - - - 1 verify
flush unix n - - 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - - - - smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay unix - - - - - smtp
-o smtp_fallback_relay=
-o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - - - - showq
error unix - - - - - error
retry unix - - - - - error
discard unix - - - - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - - - - lmtp
anvil unix - - - - 1 anvil
scache unix - - - - 1 scache
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ====================================================================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# ====================================================================
#
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
#
# Specify in cyrus.conf:
# lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
#
# Specify in main.cf one or more of the following:
# mailbox_transport = lmtp:inet:localhost
# virtual_transport = lmtp:inet:localhost
#
# ====================================================================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus unix - n n - - pipe
# user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# ====================================================================
# Old example of delivery via Cyrus.
#
#old-cyrus unix - n n - - pipe
# flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
#
# ====================================================================
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop}$
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
smtp-amavis unix - - n - 2 smtp
-o smtp_data_done_timeout=1200
-o smtp_send_xforward_command=yes
-o disable_dns_lookups=yes
-o max_use=20
127.0.0.1:10025 inet n - n - - smtpd
# -o content_filter=
# -o local_recipient_maps=
# -o relay_recipient_maps=
# -o smtpd_restriction_classes=
-o smtpd_delay_reject=no
-o smtpd_client_restrictions=permit_mynetworks,reject
# -o smtpd_helo_restrictions=
# -o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_mynetworks,reject
-o smtpd_data_restrictions=reject_unauth_pipelining
-o smtpd_end_of_data_restrictions=
-o mynetworks=127.0.0.0/8
-o smtpd_error_sleep_time=0
-o smtpd_soft_error_limit=1001
-o smtpd_hard_error_limit=1000
-o smtpd_client_connection_count_limit=0
-o smtpd_client_connection_rate_limit=0
-o receive_override_options=no_header_body_checks,no_unknown_recipient_chec$
# -o local_header_rewrite_clients=
-o smtpd_helo_restrictions=reject_sender_login_mismatch
main.cf
# 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
#05.09.2016 dodao smtpd_sender_restrictions => napravio modifikaciju (dodao ko$
#smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/sender_access
#smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/recipi$
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
#dolje promjena u "yes" 07092016
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
myhostname = mail.gkri.hr
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = mail.gkri.hr, localhost.localdomain, localhost
#relayhost =
mynetworks = 127.0.0.0/8, 193.198.1.29
mailbox_size_limit = 0
recipient_delimiter = +
#inet_interfaces = all
inet_interfaces = 193.198.1.XX, 127.0.0.1
inet_protocols = ipv4
#virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf
#virtual_alias_maps = hash:/etc/postfix/virtual
virtual_alias_domains=gkri.hr
virtual_gid_maps = static:107
virtual_mailbox_base = /var/vmail
virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf
virtual_minimum_uid = 105
virtual_transport = virtual
virtual_uid_maps = static:105
relay_domains = proxy:mysql:/etc/postfix/mysql_relay_domains_maps.cf
content_filter = smtp-amavis:[127.0.0.1]:10024
smtpd_data_restrictions = reject_unauth_pipelining,check_sender_access pcre:/et$
receive_override_options=no_address_mappings
#promjena na "yes" 07092016 - red dolje
#smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
#broken_sasl_auth_clients = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
#dodao nakon 5-tog reda još na smtpd_recipient_restrictions 24032017
smtpd_recipient_restrictions =
permit_mynetworks,
# permit_sasl_authenticated,
# check_sender_access hash:/etc/postfix/sender_checks,
# check_client_access hash:/etc/postfix/rbl_override,
reject_unauth_destination,
reject_unauth_pipelining,
# 30032017 jer neki nakladnici nemaju reverse reject_unknown_reverse_client_ho$
# reject_invalid_helo_hostname,
# reject_non_fqdn_helo_hostname,
reject_non_fqdn_sender,
check_sender_access hash:/etc/postfix/exempt_senders,
check_policy_service inet:127.0.0.1:10023,
reject_non_fqdn_recipient,
reject_unknown_sender_domain,
reject_unknown_recipient_domain,
reject_invalid_hostname,
reject_rbl_client zen.spamhaus.org,
reject_rbl_client bl.spamcop.net,
reject_rbl_client b.barracudacentral.org,
# reject_rbl_client dnsbl.sorbs.net,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client blackholes.easynet.nl,
reject_rbl_client cbl.abuseat.org,
# reject_rbl_client proxies.blackholes.wirehub.net,
reject_rbl_client sbl.spamhaus.org
# reject_rbl_client opm.blitzed.org,
# reject_rbl_client dnsbl.njabl.org,
# reject_rbl_client list.dsbl.org,
# reject_rbl_client multihop.dsbl.org
permit
message_size_limit = 104857600
virtual_mailbox_limit = 104857600
smtpd_tls_loglevel = 1
smtpd_client_restrictions = permit_mynetworks,
permit_sasl_authenticated,
reject_unauth_destination,
reject_rbl_client zen.spamhaus.org,
reject_rbl_client bl.spamcop.net,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client blackholes.easynet.nl,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client proxies.blackholes.wirehub.net,
reject_rbl_client bl.spamcop.net,
reject_rbl_client sbl.spamhaus.org,
reject_rbl_client opm.blitzed.org
# reject_rbl_client dnsbl.njabl.org,
# reject_rbl_client list.dsbl.org,
# reject_rbl_client multihop.dsbl.org
#radi poteskoce kada se pokrene (oprez)
#smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_ac$
#trebalo bi blokirati neke att (trenutno ne radi)
#mime_header_checks = regexp:/etc/postfix/mime_header_checks
#dodatno 05.09.2016 u 14:57h
smtp_destination_concurrency_limit = 3
smtp_destination_rate_delay = 1s
smtp_extra_recipient_limit = 10
#dodano 19092016 radi DKIM
milter_protocol = 6
milter_default_action = accept
smtpd_milters = inet:localhost:1427143
non_smtpd_milters = inet:localhost:1427143
#dodatno 30032017
disable_vrfy_command = yes
smtpd_delay_reject = yes
smtpd_helo_required = yes
#Rate throttlanje
smtpd_client_connection_rate_limit = 20
smtpd_error_sleep_time = 10s
smtpd_soft_error_limit = 3
#smptd_hard_error_limit = 5
#dodatno18022019 radi vivainfo, maknuo 04072019
smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated
EDIT
ul 25 21:10:01 mail postfix/smtpd[9434]: connect from 93-137-104-174.adsl.net.t-com.hr[93.137.104.XXX]
Jul 25 21:10:01 mail dovecot: auth: Debug: auth client connected (pid=0)
Jul 25 21:10:01 mail dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=smtp#011nologin#011lip=193.198.1.XX#011rip=93.137.104.174#011resp=AHJlbmUuYnJha3VzQGdrcmkuaHIAUmViYmVjYSsxMTEx (previous base64 data may contain sensitive data)
Jul 25 21:10:01 mail dovecot: auth-worker(9431): Debug: sql(rene.brakus@gkri.hr,93.137.104.XXX): query: SELECT password FROM mailbox WHERE username = 'rene.brakus@gkri.hr' AND active = '1'
Jul 25 21:10:01 mail dovecot: auth: Debug: client passdb out: OK#0111#011user=rene.brakus@gkri.hr
Jul 25 21:10:02 mail postfix/trivial-rewrite[9437]: warning: do not list domain gkri.hr in BOTH virtual_alias_domains and virtual_mailbox_domains
Jul 25 21:10:02 mail postfix/smtpd[9434]: NOQUEUE: reject: RCPT from 93-137-104-XXX.adsl.net.t-com.hr[93.137.104.XXX]: 554 5.7.1 <rene.brakus@gmail.com>: Relay access denied; from=<rene.brakus@gkri.hr> to=<rene.brakus@gmail.com> proto=ESMTP helo=<[192.168.88.XXX]>
Jul 25 21:10:05 mail postfix/smtpd[9434]: disconnect from 93-137-104-174.adsl.net.t-com.hr[93.137.104.XXX]
Jul 25 21:10:57 mail postfix/smtpd[9434]: connect from 93-137-104-174.adsl.net.t-com.hr[93.137.104.XXX]
Jul 25 21:10:57 mail dovecot: auth: Debug: client in: AUTH#0112#011PLAIN#011service=smtp#011nologin#011lip=193.198.1.XX#011rip=93.137.104.174#011resp=AHJlbmUuYnJha3VzQGdrcmkuaHIAUmViYmVjYSsxMTEx (previous base64 data may contain sensitive data)
Jul 25 21:10:57 mail dovecot: auth-worker(9431): Debug: sql(rene.brakus@gkri.hr,93.137.104.XXX): query: SELECT password FROM mailbox WHERE username = 'rene.brakus@gkri.hr' AND active = '1'
Jul 25 21:10:57 mail dovecot: auth: Debug: client passdb out: OK#0112#011user=rene.brakus@gkri.hr
Jul 25 21:10:58 mail postfix/smtpd[9434]: NOQUEUE: reject: RCPT from 93-137-104-174.adsl.net.t-com.hr[93.137.104.XXX: 554 5.7.1 <rene.brakus@gmail.com>: Relay access denied; from=<rene.brakus@gkri.hr> to=<rene.brakus@gmail.com> proto=ESMTP helo=<[192.168.88.XXX]>