On Jun 2, 2009, at 2:52 AM, Bernd Nies <listu...@adnovum.ch> wrote:
Hi,
Our users have the following complaint about the Postfix behaviour:
They write Emails to
From: someb...@somewhere.com
To: gro...@example.com, gro...@example.com
The mailgroup is expanded with aliases to
group1: user1, user2, user3, user4, user5
group2: user5, user6, user7
Then user5 gets the same email twice in its inbox. We recently had
to migrate from Cyrus IMAP to Zimbra as backend mailserver and use
Postfix on our gateways and to manage all the thousands aliases and
special hacks because Zimbra is not flexible enough. In Cyrus IMAP
one could suppress double delivery to the same mailbox when a
message had the same Message-ID.
I remember that Sendmail expanded all group aliases and stripped off
duplicate recipients. How can this done with Postfix? I googled for
that problem but did not find
Postfix is the wrong place to solve this 'problem'; Zimbra can be
configured to suppress duplicate Message IDs; see google or ask the
Zimbra people for help.
Thanks in advance for help.
Best regards,
Bernd
$ postconf -d mail_version
mail_version = 2.3.3
$ postconf -n
alias_database = dbm:/etc/opt/adnpostfix/aliases
alias_maps = dbm:/etc/opt/adnpostfix/aliases dbm:/etc/opt/adnpostfix/
aliases_users dbm:/etc/opt/adnpostfix/aliases_subscribr
allow_mail_to_commands = alias
allow_mail_to_files = alias
command_directory = /opt/adnpostfix/sbin
config_directory = /etc/opt/adnpostfix
daemon_directory = /opt/adnpostfix/libexec
debug_peer_level = 2
expand_owner_alias = yes
forward_path = /etc/opt/adnpostfix/forward/$user
html_directory = no
inet_interfaces = all
local_recipient_maps = $alias_maps $virtual_alias_maps
mail_owner = postfix
mailbox_size_limit = 0
mailbox_transport = lmtp:unix:/var/spool/adnmail/cyrus/imap/socket/
lmtp
mailq_path = /opt/adnpostfix/sbin/mailq
manpage_directory = /opt/adnpostfix/man
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_domains = example.com
message_size_limit = 209715200
mydestination = $myhostname, localhost.$mydomain $mydomain
mydomain = example.com
myhostname = mailserver.example.com
mynetworks = 192.168.0.0/16, 127.0.0.0/8, 10.0.0.0/8
myorigin = $mydomain
newaliases_path = /opt/adnpostfix/sbin/newaliases
queue_directory = /var/opt/adnpostfix
readme_directory = no
relocated_maps = dbm:/etc/opt/adnpostfix/relocated
sendmail_path = /opt/adnpostfix/sbin/sendmail
setgid_group = postdrop
smtpd_sender_restrictions = check_sender_access dbm:/etc/opt/
adnpostfix/access_sender, permit_mynetworks,
permit_sasl_authenticated
transport_maps = dbm:/etc/opt/adnpostfix/transport
unknown_local_recipient_reject_code = 550
virtual_alias_domains = $virtual_alias_maps
virtual_alias_maps = dbm:/etc/opt/adnpostfix/virtual
