Postfix client host rejected
6,579
You defined smtpd_sasl_security_options = noanonymous ( this is also the default). In your roundcube config the line
$rcmail_config['smtp_server'] = 'ssl://127.0.0.1';
defines to use ssl. For anonymous ssl connections are rejected you have to provide an username and password for the connection. But you have defined none:
// SMTP username (if required) if you use %u as the. username Roundcube
// will use the current username for login
$rcmail_config['smtp_user'] = '';
// SMTP password (if required) if you use %p as the password Roundcube
// will use the current user's password for login
$rcmail_config['smtp_pass'] = '';
Author by
Phll
Updated on September 18, 2022Comments
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Phll almost 2 years
I set up Postfix+Courier+Roundcube on Ubuntu 12.04, but when I try to send an email with Roundcube, I receive the following error:
/var/log/mail.log :
Dec 30 20:54:35 server postfix/smtpd[31465]: connect from localhost[127.0.0.1] Dec 30 20:54:35 server postfix/smtpd[31465]: Anonymous TLS connection established from localhost[127.0.0.1]: TLSv1.1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits) Dec 30 20:54:35 server postfix/smtpd[31465]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 554 5.7.1 <localhost[127.0.0.1]>: Client host rejected: Access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail.mydomain.net> Dec 30 20:54:35 server postfix/smtpd[31465]: disconnect from localhost[127.0.0.1]
Not sure how this could be, given my settings:
/etc/postfix/main.cf :
# 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 $mail_name biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtp_tls_security_level = may smtpd_tls_security_level = may smtp_tls_note_starttls_offer = yes smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s tls_random_source = dev:/dev/urandom smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key # smtpd_use_tls=yes # smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache # smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt #SASL smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = no smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = server.mydomain.net alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = mydomain.net mydestination = mail.mydomain.net, mydomain.net, localhost.mydomain.net, localhost #mydestination = relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all mynetworks_style = host masquerade_domains = mail.mydomain.net mydomain.net !sub.dyndomain.com masquerade_exceptions = root local_recipient_maps = mydestination = delay_warning_time = 4h unknown_local_recipient_reject_code = 450 maximal_queue_lifetime = 7d minimal_backoff_time = 1000s maximal_backoff_time = 8000s smtp_helo_timeout = 60s smtpd_recipient_limit = 16 smtpd_soft_error_limit = 3 smtpd_hard_error_limit = 12 smtpd_helo_restrictions = permit_mynetworks, warn_if_reject reject_non_fqdn_hostname, reject_invalid_hostname, permit smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks, warn_if_reject reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unauth_pipelining, permit smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl smtpd_recipient_restrictions = reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_destination, check_policy_service inet:127.0.0.1:10023, permit smtpd_data_restrictions = reject_unauth_pipelining smtpd_helo_required = yes smtpd_delay_reject = yes disable_vrfy_command = yes alias_maps = hash:/etc/postfix/aliases alias_database = hash:/etc/postfix/aliases virtual_mailbox_base = /var/spool/mail/virtual virtual_mailbox_maps = mysql:/etc/postfix/mysql_mailbox.cf virtual_alias_maps = mysql:/etc/postfix/mysql_alias.cf virtual_mailbox_domains = mysql:/etc/postfix/mysql_domains.cf virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 content_filter = amavis:[127.0.0.1]:10024
/etc/postfix/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 #smtp inet n - - - 1 postscreen #smtpd pass - - - - - smtpd #dnsblog unix - - - - 0 dnsblog #tlsproxy unix - - - - 0 tlsproxy submission inet n - n - - smtpd -o smtpd_sasl_auth_enable=yes -o smtpd_tls_auth_only=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject_unauth_destination,reject -o smtpd_sasl_security_options=noanonymous,noplaintext -o smtpd_sasl_tls_security_options=noanonymous # -o syslog_name=postfix/submission # -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING smtps inet n - - - - smtpd -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes -o smtpd_tls_auth_only=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sasl_security_options=noanonymous,noplaintext -o smtpd_sasl_tls_security_options=noanonymous # -o syslog_name=postfix/smtps # -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 -o content_filter= -o receive_override_options=no_header_body_checks cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr 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 relay unix - - - - - smtp # -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} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} amavis unix - - - - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes -o max_use=20 127.0.0.1:10025 inet n - - - - smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_delay_reject=no -o smtpd_client_restrictions=permit_mynetworks,reject -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o mynetworks=127.0.0.0/8 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks
relevant part of /etc/roundcube/main.inc.php
// ---------------------------------- // SMTP // ---------------------------------- // SMTP server host (for sending mails). // To use SSL/TLS connection, enter hostname with prefix ssl:// or tls:// // If left blank, the PHP mail() function is used // Supported replacement variables: // %h - user's IMAP hostname // %n - http hostname ($_SERVER['SERVER_NAME']) // %d - domain (http hostname without the first part) // %z - IMAP domain (IMAP hostname without the first part) // For example %n = mail.domain.tld, %d = domain.tld $rcmail_config['smtp_server'] = 'ssl://127.0.0.1'; // SMTP port (default is 25; 465 for SSL) $rcmail_config['smtp_port'] = 465; // SMTP username (if required) if you use %u as the username Roundcube // will use the current username for login $rcmail_config['smtp_user'] = ''; // SMTP password (if required) if you use %p as the password Roundcube // will use the current user's password for login $rcmail_config['smtp_pass'] = ''; // SMTP AUTH type (DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN or empty to use // best server supported one) $rcmail_config['smtp_auth_type'] = ''; // Optional SMTP authentication identifier to be used as authorization proxy $rcmail_config['smtp_auth_cid'] = null; // Optional SMTP authentication password to be used for smtp_auth_cid $rcmail_config['smtp_auth_pw'] = null; // SMTP HELO host // Hostname to give to the remote server for SMTP 'HELO' or 'EHLO' messages // Leave this blank and you will get the server variable 'server_name' or // localhost if that isn't defined. $rcmail_config['smtp_helo_host'] = 'mail.mydomain.net'; // SMTP connection timeout, in seconds. Default: 0 (no limit) $rcmail_config['smtp_timeout'] = 0;
Any ideas? I feel like I've reached a dead end here.
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NickW over 10 yearsKind of odd it accepted an anonymous connection when you have this:
smtpd_sasl_security_options = noanonymous
. IMHO, insmtpd_sender_restrictions
, putpermit_mynetworks
first.. -
Phll over 10 yearsThanks for the response. I tried disabling the
nonanonymous
line, and I also movedpermit_mynetworks
at the front of thesmtpd_sender_restrictions
line. Neither seemed to make any difference. I'm starting to think it might be a DNS/Apache issue. -
Michael Hampton over 10 yearsWhat is
etc...
doing in your log message? Did you edit out things from the log? This may not be helpful... -
Phll over 10 yearsI cut out the name of the cipher for the sake of brevity. But it's back now, if you want to have a look.
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topdog over 10 yearsThe issue is your smtpd_client_restrictions = reject_rbl_client sbl.spamhaus.org, reject_rbl_client blackholes.easynet.nl does not have a permit, meaning there is an implicit reject at the end of that list
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Phll over 10 yearsThat was a good suggestion, but commenting that line out doesn't make any difference. By the way, I should say that I can easily send mail using
telnet localhost 25
... Perhaps Roundcube is the problem. -
Laurentiu Roescu over 10 yearsCheck master.cf, the problem could be there. What is the port roundcube is using for submission?
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NickW over 10 years@Phll the noanonymous option is the default, even commenting it out, it remains, have you configured the SMTP settings of roundcube to use authentication?
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Phll over 10 yearsUPDATE: I just added the contents of master.cf and Roundcube's main.inc.php
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