Duplicate email troubleshooting
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Greetings, I'm running into an issue with a mailbox that also has aliases assigned to it. e.g. [hidden email] has alias [hidden email] [hidden email]and [hidden email] What's weird is user1 and user2 are getting duplicate emails, but I don't have this problem with other users set up in a similar fashion. I've tried to debug this, read the threads, pore over the logs, and do due diligence on this, but I'm stumped. I have amavis running spamassassin and clamd. Can anyone point me in the right direction on this? Postconf follows: alias_maps = hash:/etc/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix content_filter = amavisfeed:[127.0.0.1]:10024 daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5 dovecot_destination_recipient_limit = 1
header_checks = pcre:/etc/postfix/header_checks html_directory = no inet_protocols = ipv4 mail_owner = postfix mailbox_size_limit = 0 mailq_path = /usr/bin/mailq manpage_directory = /usr/local/man maximal_backoff_time = 600s maximal_queue_lifetime = 1d message_size_limit = 0 milter_default_action = accept milter_macro_daemon_name = ORIGINATING milter_protocol = 2 minimal_backoff_time = 300s mydestination = $myhostname, localhost.$mydomain, localhost mydomain = globalchangemultimedia.net myhostname = triata.globalchangemultimedia.net newaliases_path = /usr/bin/newaliases niann = check_sender_access regexp:/etc/postfix/gcca_recipient_restrictions/niann, permit non_smtpd_milters = $smtpd_milters postscreen_access_list = permit_mynetworks, cidr:/etc/postfix/postscreen_access.cidr postscreen_dnsbl_action = enforce postscreen_dnsbl_sites = dnsbl.sorbs.net=127.0.0.10*8 zen.spamhaus.org=127.0.0.[10;11]*8 b.barracudacentral.org=127.0.0.2*7 dnsbl.inps.de=127.0.0.2*7 dnsbl.sorbs.net=127.0.0.5*7 zen.spamhaus.org=127.0.0.[4..7]*7 zen.spamhaus.org=127.0.0.3*5 bl.mailspike.net=127.0.0.2*5 bl.mailspike.net=127.0.0.[10;11;12]*4 bl.spamcop.net=127.0.0.2*4 bl.spameatingmonkey.net=127.0.0.[2;3]*4 dnsrbl.swinog.ch=127.0.0.3*4 zen.spamhaus.org=127.0.0.2*3 dnsbl.sorbs.net=127.0.0.7*3 dnsbl.sorbs.net=127.0.0.8*2 dnsbl.sorbs.net=127.0.0.6*2 dnsbl.sorbs.net=127.0.0.9*2 wl.mailspike.net=127.0.0.[18;19;20]*-2 list.dnswl.org=127.0.[0..255].0*-2 list.dnswl.org=127.0.[0..255].1*-3 list.dnswl.org=127.0.[0..255].2*-4 list.dnswl.org=127.0.[0..255].3*-5 postscreen_dnsbl_threshold = 8 postscreen_dnsbl_ttl = 5m postscreen_greet_action = enforce postscreen_greet_wait = ${stress?3}${stress:10}s queue_directory = /var/spool/postfix queue_run_delay = 300s readme_directory = no relay_domains = $mydestination, mysql:/etc/postfix/mysql_virtual_relay_domains.cf sample_directory = /etc/postfix sendmail_path = /usr/sbin/sendmail setgid_group = postdrop show_user_unknown_table_name = no smtp_sasl_mechanism_filter = plain, login smtp_tls_security_level = may smtpd_client_restrictions = check_client_access mysql:/etc/postfix/mysql_blacklist, permit_sasl_authenticated, permit_dnswl_client list.dnswl.org permit_dnswl_client wl.mailspike.net permit_dnswl_client iadb.isipp.com permit_dnswl_client sa-accredit.habeas.com permit_dnswl_client dnswl.inps.de permit_dnswl_client swl.spamhaus.org permit_dnswl_client hostkarma.junkemailfilter.com=127.0.0.1 ${stress?sleep 0}${stress: sleep 5} permit smtpd_data_restrictions = reject_unauth_pipelining, permit smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, check_helo_access mysql:/etc/postfix/mysql_helo_restrictions.cf, permit_sasl_authenticated, reject_invalid_hostname, permit smtpd_milters = inet:127.0.0.1:8891 smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender, reject_unauth_destination, reject_invalid_hostname, reject_unknown_reverse_client_hostname, reject_non_fqdn_recipient, reject_unknown_sender_domain, check_recipient_access mysql:/etc/postfix/mysql_restricted_recipients.cf, permit smtpd_relay_restrictions = permit_mynetworks, check_recipient_access mysql:/etc/postfix/mysql_restricted_recipients.cf, permit_sasl_authenticated, reject_unauth_destination smtpd_restriction_classes = gcmm_only, local_only, unrestricted smtpd_sasl_auth_enable = no smtpd_sasl_exceptions_networks = $mynetworks smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_sender_restrictions = check_sender_access mysql:/etc/postfix/mysql_restricted_senders.cf, check_sender_access mysql:/etc/postfix/mysql_blacklist, permit_sasl_authenticated, permit_mynetworks, reject_non_fqdn_sender, reject_unknown_sender_domain, permit smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/postfix/ssl/triata.globalchangemultimedia.net.2016.pem smtpd_tls_key_file = /etc/postfix/ssl/triata.key smtpd_tls_received_header = no smtpd_tls_security_level = may smtpd_tls_session_cache_database = btree:/var/spool/postfix/smtpd_tls_session_cache
transport_maps = mysql:/etc/postfix/mysql_virtual_transport.cf unknown_local_recipient_reject_code = 550 unrestricted = permit virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf virtual_gid_maps = static:1001 virtual_mailbox_base = /vmail virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf virtual_mailbox_limit = 0 virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf virtual_minimum_uid = 1001 virtual_transport = dovecot virtual_uid_maps = static:1001 --
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Re: Duplicate email troubleshooting
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On 30.01.18 08:55, Asai wrote:
>I'm running into an issue with a mailbox that also has aliases assigned to it. please avoid HTML mail. >e.g. [hidden email] has alias [hidden email], [hidden email], and [hidden email] >What's weird is user1 and user2 are getting duplicate emails, but I don't have this problem with other users set up in a similar fashion. so, are they aliases to user or different users? how are they aliased - virtual users, virtual aliases ... ? -- Matus UHLAR - fantomas, [hidden email] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Linux is like a teepee: no Windows, no Gates and an apache inside... |
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Thank you for your assistance. They are aliases to a user. [hidden email] that also has an alias in the alias table, [hidden email] along with [hidden email] and [hidden email] Asai |
Re: Duplicate email troubleshooting
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In reply to this post by asai
> On Jan 30, 2018, at 10:55 AM, Asai <[hidden email]> wrote: > > I'm running into an issue with a mailbox that also has aliases assigned to it. > > e.g. [hidden email] has alias [hidden email], [hidden email], and [hidden email] > > What's weird is user1 and user2 are getting duplicate emails, but I don't have this problem with other users set up in a similar fashion. > > I've tried to debug this, read the threads, pore over the logs, and do due diligence on this, but I'm stumped. I have amavis running spamassassin and clamd. > > Can anyone point me in the right direction on this? When a message is sent to two recipient addresses, that happen to share the same mailbox, duplicate delivery is often a fact of life. Deduplication is ultimately up to the mailstore and the mail-user-agent. However, in Postfix, you can somewhat reduce the incidence of duplicate deliveries with: http://www.postfix.org/postconf.5.html#enable_original_recipient enable_original_recipient = no Whether this would help you or not is hard to say without logs showing all the log entries for the queue file(s) that were logged by cleanup(8) to have the Message-Id in question. -- Viktor. |
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In reply to this post by Matus UHLAR - fantomas
On 01/30/2018 06:21 PM, Matus UHLAR - fantomas wrote:
> On 30.01.18 08:55, Asai wrote: >> I'm running into an issue with a mailbox that also has aliases >> assigned to it. > > please avoid HTML mail. >> e.g. [hidden email] has alias [hidden email], >> [hidden email], and [hidden email] > >> What's weird is user1 and user2 are getting duplicate emails, but I >> don't have this problem with other users set up in a similar fashion. > > so, are they aliases to user or different users? > how are they aliased - virtual users, virtual aliases ... ? > Read my message some days ago, with subject Message-ID. In short, you can eliminate a lot of duplicate emails by using lmtp or lda on delivery (dovecot), and use the duplicate sieve filter globally, for all your virtual users. It eliminates A LOT of duplicate deliveries using the Message-ID header. In my case, it missed some local generated bot emails but it was easy to catch them by adding always_add_missing_headers in postfix conf. Your mileage may vary... GP |
Re: Duplicate email troubleshooting
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In reply to this post by asai
>> On 30.01.18 08:55, Asai wrote:
>>> I'm running into an issue with a mailbox that also has aliases assigned to it. >> On Jan 30, 2018, at 9:21 AM, Matus UHLAR - fantomas <[hidden email]> wrote: >> please avoid HTML mail. >>> e.g. [hidden email] has alias [hidden email], [hidden email], and [hidden email] >> >>> What's weird is user1 and user2 are getting duplicate emails, but I don't have this problem with other users set up in a similar fashion. >> so, are they aliases to user or different users? >> how are they aliased - virtual users, virtual aliases … ? On 30.01.18 10:28, Asai wrote: >They are aliases to a user. [hidden email] <mailto:[hidden email]> that > also has an alias in the alias table, [hidden email] > <mailto:[hidden email]> along with [hidden email] > <mailto:[hidden email]> and [hidden email] > <mailto:[hidden email]> please avoid HTML mail. Especially with client that has an urge to expand mail address to link even in plaintext format. >All users and aliases are virtual users and aliases mapped in a MySQL database. arfe they all aliased to the same real user? is original mail sent to multiple addresses of the same user? -- Matus UHLAR - fantomas, [hidden email] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Microsoft dick is soft to do no harm |
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