[Dovecot] sieve pigeonhole vacation filter responding when recipient is not explicitly listed

[Milan Cvetkovic]

Hi dovecot.org,

When I set up vacation filter for a mailbox, the vacation response is 
generated even though none of the addresses in the email are same as the 
mailbox address itself.


I have example email sent to "aliastouser at mpathix.com" which gets 
delivered to "user at my.domain.com" by dovecot-lda.

The invocation command is:

# /usr/lib/dovecot/dovecot-lda \
   -d user \
   -f john.doe at somewhere.com \
   -a aliastouser at mpathix.com \
   -p /tmp/test.email


# cat /tmp/test.email
Message-ID: <test3>
From: John Doe <john at somewhere.com>
To: aliastouser at mpathix.com
Subject: test3 vacation response as aliastouser

This is the only line in test.email.

Here is the vacation filter:

if true
{
vacation :days 1 :addresses ["user at my.domain.com"] text:
Please ignore this message, I am only testing vacation filter
.
;
}

/var/log/mail.log shows that sieve vacation sends vacation, (and after 
succeeding attempts, discards due to already sent address)

Apr  9 13:37:21 mx01 dovecot: lda(user): sieve: <test3>: sent vacation 
response to <john at somewhere.com>
Apr  9 13:37:21 mx01 dovecot: lda(user): sieve: msgid=<test3>: stored 
mail into mailbox 'INBOX'
...
Apr  9 13:40:15 mx01 dovecot: lda(user): sieve: msgid=<test3>: discarded 
duplicate vacation response to <john at somewhere.com>
Apr  9 13:40:15 mx01 dovecot: lda(user): sieve: msgid=<test3>: stored 
mail into mailbox 'INBOX'


Attached is the doveconf -n output.

Any help is appreciated.

Milan.


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# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.4 
auth_mechanisms = plain login
mail_location = maildir:~/Maildir
mail_plugins = " notify replication"
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
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 {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  mail_replica = remote:vmail@<ip-address>
  sieve = ~/.dovecot.sieve
  sieve_before = /etc/dovecot/mpathix.sieve
  sieve_dir = ~/sieve
}
protocols = " imap sieve pop3"
replication_full_sync_interval = 1 hours
service aggregator {
  fifo_listener replication-notify-fifo {
    user = vmail
  }
  unix_listener replication-notify {
    user = vmail
  }
}
service auth {
  unix_listener auth-client {
    mode = 0660
    user = Debian-exim
  }
}
service doveadm {
  user = vmail
}
service replicator {
  process_min_avail = 1
  unix_listener replicator-doveadm {
    group = vmail
    mode = 0660
  }
}
ssl_cert = </etc/exim4/exim.crt
ssl_key = </etc/exim4/exim.key
userdb {
  driver = prefetch
}
userdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
protocol lda {
  mail_plugins = " notify replication sieve"
}