Quoting Robert Schetterer <r...@sys4.de>:

Am 12.09.2016 um 15:07 schrieb Andre Luiz Paiz:
Hi everybody. I'm having difficulties to setup my filters correctly and
I really need some help.

This is my environment:

Mail that is received on the system passes through a sieve_before script
that checks the message header for SPAM tag and store it into the "Junk"
folder. If no spam tag is found, mail goes to inbox.
My horde webmail is integrated with sieve, so this allow users to create
their own scripts to store mail in other folders or forward them to
external accounts. And this are the problems I'm having:

1 - When users create a forward filter to redirect to external mail,
mail that is stored inside the Junk folder are not forwarded;
2 - If I insert a "keep" parameter inside the sieve_before script to
keep processing the rules, the mail is forwarded, but becomes duplicated
and stored inside the inbox or other folders, if the user has more filters.
3 - If I move my sieve_before script to sieve_after, the same thing
happened, one copy is stored on the user selected folder (inbox or
filtered), including mail marked as SPAM.

My needs are: I need to separate SPAM and HAM e-mail before users
intervention (so I need sieve_before). But this SPAM e-mail has to be
forwarded if a forward filter is created.
Is it possible to use a sieve_after script that moves (instead of copy)
the user mail marked as SPAM to the Junk folder even if it was stored in
a different folder?

Is that possible?

Thanks a lot.

Here is my config:

sieve_after content:
require "fileinto";
if header :contains "X-Spam-Flag" "YES" {
  fileinto "Junk";
}

dovecot --version
2.2.10

# 2.2.10: /etc/dovecot/dovecot.conf
# OS: Linux 3.10.0-327.28.2.el7.x86_64 x86_64 CentOS Linux release
7.2.1511 (Core)
auth_cache_negative_ttl = 0
auth_cache_size = 10 M
auth_mechanisms = plain login
auth_username_format = %Ln
default_client_limit = 1024
default_process_limit = 1024
default_vsz_limit = 1 G
mail_location = maildir:~/Maildir:INDEX=/var/indexes/dovecot/%u
mail_plugins = " mail_log notify quota"
mail_temp_dir = /var/tmp
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacation subaddress comparator-i;ascii-numeric
relational regex imap4flags copy include variables body
enotify environment mailbox date ihave imapflags notify
mbox_write_locks = fcntl
mmap_disable = yes
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix =
}
passdb {
  driver = pam
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
plugin {
  mail_log_events = delete undelete expunge copy mailbox_delete
mailbox_rename
  mail_log_fields = uid box msgid size
  quota = maildir
  quota_exceeded_message = Cota de armazenamento de e-mails excedida.
Quota exceeded for mail store.
  quota_warning = storage=95%% quota-warning 95 %u
  quota_warning2 = storage=85%% quota-warning 85 %u
  quota_warning3 = storage=75%% quota-warning 75 %u
  sieve = ~/.dovecot.sieve
  sieve_before = /var/lib/dovecot/sieve/default.sieve
  sieve_default = /var/lib/dovecot/sieve/default.sieve
  sieve_dir = ~/sieve
  sieve_extensions = +notify +imapflags
}
protocols = imap pop3 lmtp sieve
service anvil {
  client_limit = 14100
  process_limit = 1
}
service auth-worker {
  client_limit = 1
  process_limit = 50
  service_count = 1
}
service auth {
  client_limit = 15100
  process_limit = 1
}
service dict {
  client_limit = 1
}
service imap-login {
  inet_listener imap {
    port = 143
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
  process_limit = 6000
  process_min_avail = 10
  service_count = 1
  vsz_limit = 256 M
}
service imap {
  process_limit = 3000
  vsz_limit = 1 G
}
service lmtp {
  client_limit = 1
  inet_listener lmtp {
    port = 24
  }
  unix_listener lmtp {
    mode = 0666
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
}
service pop3-login {
  inet_listener pop3 {
    port = 110
  }
  inet_listener pop3s {
    port = 995
    ssl = yes
  }
  process_limit = 6000
  process_min_avail = 10
  service_count = 1
}
service pop3 {
  process_limit = 3000
}
service quota-warning {
  executable = script /usr/local/bin/quota-warning.sh
  unix_listener quota-warning {
    mode = 0666
    user = dovecot
  }
  user = root
}
ssl = required
ssl_cert = **************
ssl_key = **************
userdb {
  driver = passwd
}
userdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
protocol lmtp {
  mail_plugins = " mail_log notify quota sieve quota"
}
protocol imap {
  mail_plugins = " mail_log notify quota imap_quota"
}
Atenciosamente

André Luiz Paiz
Administração de Redes
Instituto de Química – Unicamp
andre.p...@iqm.unicamp.br
Telefone: (19)3521-0197

i have a nearly the same setup incl Horde , solved like this

spam tag added via spamass-milter and postfix, dove lmtp

/etc/dovecot/sieve/global.sieve
...
if header :contains "X-Spam-Flag" "YES" {fileinto "Junk";stop;}
...

http://wiki2.dovecot.org/Pigeonhole/Sieve/Examples

90-sieve.conf
...
sieve = file:~/sieve;active=~/.dovecot.sieve
...
#sieve_default = /var/lib/dovecot/sieve/default.sieve
...
sieve_global = /etc/dovecot/sieve/
...

i use no sieve includes

that forces the spam filter act ever, only mail that went inbox can be
redirected by user scripts later

but check if this may fit to your dove setup

Best Regards
MfG Robert Schetterer

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Scanned and tagged with DSPAM 3.10.2 by Instituto de Quimica
!DSPAM:9735,57d6b2dd10014649918933!

Thanks for you reply.

My needs are almost there. In my case I need that SPAM mails also be redirected with the forward filter, even after it was sended to the Junk folder. Is that possible without creating duplicated messages (one in the Junk folder and another inside the inbox or another user folder)?
 Atenciosamente
 
André Luiz Paiz
Administração de Redes
Instituto de Química – Unicamp
andre.p...@iqm.unicamp.br
Telefone: (19)3521-0197

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