Hello! Set up server under this manual: http://www.howtoforge.com/perfect-server-centos-6.4-x86_64-nginx-dovecot-ispconfig-3 Seems all working fine, exept when people sending mail to admin@ or any other address they receive MD error report: Code: The mail system <[email protected]>: unknown user: "admin" Reporting-MTA: dns; psylab.cc X-Postfix-Queue-ID: 1170E354044D X-Postfix-Sender: rfc822; ******@yandex.ua Arrival-Date: Thu, 2 May 2013 22:23:08 +0300 (EEST) Final-Recipient: rfc822; [email protected] Original-Recipient: rfc822;[email protected] Action: failed Status: 5.1.1 Diagnostic-Code: X-Postfix; unknown user: "admin" And in maillog I can see someting like that: Code: May 2 22:23:04 psylab postfix/smtpd[2203]: connect from forward1h.mail.yandex.net[84.201.187.146] May 2 22:23:05 psylab postfix/trivial-rewrite[2666]: warning: do not list domain psylab.cc in BOTH mydestination and virtual_mailbox_domains May 2 22:23:05 psylab postfix/smtpd[2203]: 37C36354044C: client=forward1h.mail.yandex.net[84.201.187.146] May 2 22:23:05 psylab postfix/cleanup[2676]: 37C36354044C: message-id=<[email protected]> May 2 22:23:05 psylab postfix/qmgr[2008]: 37C36354044C: from=<[email protected]>, size=1370, nrcpt=1 (queue active) May 2 22:23:05 psylab postfix/smtpd[2203]: disconnect from forward1h.mail.yandex.net[84.201.187.146] May 2 22:23:08 psylab postfix/smtpd[2680]: connect from unknown[127.0.0.1] May 2 22:23:08 psylab postfix/trivial-rewrite[2666]: warning: do not list domain psylab.cc in BOTH mydestination and virtual_mailbox_domains May 2 22:23:08 psylab postfix/smtpd[2680]: 1170E354044D: client=unknown[127.0.0.1] May 2 22:23:08 psylab postfix/cleanup[2676]: 1170E354044D: message-id=<[email protected]> May 2 22:23:08 psylab postfix/smtpd[2680]: disconnect from unknown[127.0.0.1] May 2 22:23:08 psylab postfix/qmgr[2008]: 1170E354044D: from=<********@yandex.ua>, size=1774, nrcpt=1 (queue active) May 2 22:23:08 psylab postfix/trivial-rewrite[2666]: warning: do not list domain psylab.cc in BOTH mydestination and virtual_mailbox_domains May 2 22:23:08 psylab amavis[2169]: (02169-02) Passed CLEAN {RelayedInbound}, [84.201.187.146]:50331 [**.**.**.**] <********@yandex.ua> -> <[email protected]>, Message May 2 22:23:08 psylab postfix/smtp[2677]: 37C36354044C: to=<[email protected]>, relay=127.0.0.1[127.0.0.1]:10024, delay=3, delays=0.31/0.01/0/2.7, dsn=2.0.0, status=sent May 2 22:23:08 psylab postfix/qmgr[2008]: 37C36354044C: removed May 2 22:23:08 psylab postfix/local[2682]: 1170E354044D: to=<[email protected]>, relay=local, delay=0.17, delays=0.12/0.01/0/0.04, dsn=5.1.1, [B]status=bounced (unknown user: "admin")[/B] May 2 22:23:08 psylab postfix/cleanup[2676]: 3A38D3540456: message-id=<[email protected]> May 2 22:23:08 psylab postfix/bounce[2683]: 1170E354044D: sender non-delivery notification: 3A38D3540456 May 2 22:23:08 psylab postfix/qmgr[2008]: 3A38D3540456: from=<>, size=3547, nrcpt=1 (queue active) May 2 22:23:08 psylab postfix/qmgr[2008]: 1170E354044D: removed May 2 22:23:09 psylab postfix/smtp[2684]: 3A38D3540456: to=<*******@yandex.ua>, relay=mx.yandex.ru[213.180.193.89]:25, delay=1.2, delays=0.05/0.01/0.47/0.65, dsn=2.0 May 2 22:23:09 psylab postfix/qmgr[2008]: 3A38D3540456: removed my main.cnf Code: readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix mail_owner = postfix inet_interfaces = all inet_protocols = ipv4 unknown_local_recipient_reject_code = 550 alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases virtual_alias_domains =. virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, mysql:/etc/postfix/mysql-virtual_email2email.cf virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf virtual_mailbox_base = /var/vmail virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, check_recipient_access mysql:/etc/postfix/mysql-virtual_recipient.cf, reject_unauth_destina smtpd_use_tls = yes smtpd_tls_security_level = may smtpd_tls_cert_file = /etc/postfix/smtpd.cert smtpd_tls_key_file = /etc/postfix/smtpd.key transport_maps = hash:/var/lib/mailman/data/transport-mailman, proxy:mysql:/etc/postfix/mysql-virtual_transports.cf relay_domains = mysql:/etc/postfix/mysql-virtual_relaydomains.cf relay_recipient_maps = mysql:/etc/postfix/mysql-virtual_relayrecipientmaps.cf proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $ smtpd_sender_restrictions = check_sender_access mysql:/etc/postfix/mysql-virtual_sender.cf smtpd_client_restrictions = check_client_access mysql:/etc/postfix/mysql-virtual_client.cf maildrop_destination_concurrency_limit = 1 maildrop_destination_recipient_limit = 1 virtual_transport = dovecot header_checks = regexp:/etc/postfix/header_checks mime_header_checks = regexp:/etc/postfix/mime_header_checks nested_header_checks = regexp:/etc/postfix/nested_header_checks body_checks = regexp:/etc/postfix/body_checks myhostname = psylab.cc mynetworks = 127.0.0.0/8 dovecot_destination_recipient_limit = 1 smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth receive_override_options = no_address_mappings content_filter = amavis:[127.0.0.1]:10024 relayhost =. mailbox_size_limit = 0 message_size_limit = 0 my master.cf Code: smtp inet n - n - - smtpd submission inet n - n - - smtpd # -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 - 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 - n - - qmqpd pickup fifo n - n 60 1 pickup cleanup unix n - n - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr tlsmgr unix - - n 1000? 1 tlsmgr rewrite unix - - n - - trivial-rewrite bounce unix - - n - 0 bounce defer unix - - n - 0 bounce trace unix - - n - 0 bounce verify unix - - n - 1 verify flush unix n - n 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - n - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - n - - smtp -o smtp_fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - n - - showq error unix - - n - - error mailman unix - n n - - pipe # flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py # ${nexthop} ${user} dovecot unix - n n - - pipe flags=DROhu user=vmail:vmail argv=/usr/libexec/dovecot/deliver -f ${sender} -d ${user}@${nexthop} amavis unix - - - - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes 127.0.0.1:10025 inet n - - - - smtpd my dovecot.conf Code: protocols = imap pop3 auth_mechanisms = plain login disable_plaintext_auth = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_privileged_group = vmail ssl_cert = </etc/postfix/smtpd.cert ssl_key = </etc/postfix/smtpd.key passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { quota = dict:user::file:/var/vmail/%d/%n/.quotausage sieve=/var/vmail/%d/%n/.sieve } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } user = root } protocol imap { mail_plugins = quota imap_quota } protocol pop3 { pop3_uidl_format = %08Xu%08Xv mail_plugins = quota } protocol lda { mail_plugins = sieve quota } I skipped some lines in config to reduce post size! Please help me to mitigate and solve this!