2.3.1 with quota and lmtp; message may be sent more than once

[Frank Ebert]

Hi,

I have another problem with dovecot 2.3.1 on FreeBSD (smtpd is postfix
3.3.0). When one mail is sent with different recipients and the quota
limit of one user is exceeded, the message will be delivered repeatedly
to all users. The queue from postfix says:

(lost connection with mailserver.foo.bar[private/lmtp-dovecot] while
sending end of data -- message may be sent more than once)

The problem started with dovecot 2.3.1. With 2.2.3x everything was fine.

Any ideas?

Thanx
Frank

doveconf -n:

auth_mechanisms = plain login
auth_use_winbind = yes
auth_winbind_helper_path = /usr/local/bin/ntlm_auth
disable_plaintext_auth = no
info_log_path = /var/log/dovecot
listen = *
mail_location = mdbox:~/mdbox
mail_plugins = zlib quota acl mail_log notify
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacati on subaddress comparator-i;ascii-numeric
relational regex imap4flags copy includ e variables body enotify
environment mailbox date index ihave duplicate mime for everypart
extracttext
namespace {
 location = mdbox:/home/vmail/foo.domain/foo/mdbox
 prefix = Foo/
 separator = /
 subscriptions = yes
 type = public
}
namespace {
 location = mdbox:/home/vmail/bar.domain/bar/mdbox
 prefix = Bar/
 separator = /
 subscriptions = yes
 type = public
}
namespace {
 location = mdbox:/home/vmail/foobar.domain/foobar/mdbox
 prefix = Foobar/
 separator = /
 subscriptions = yes
 type = public
}
namespace inbox {
 inbox = yes
 location =
 mailbox Drafts {
   auto = subscribe
   special_use = \Drafts
 }
 mailbox Junk {
   special_use = \Junk
 }
 mailbox Sent {
   auto = subscribe
   special_use = \Sent
 }
 mailbox "Sent Messages" {
   special_use = \Sent
 }
 mailbox Trash {
   auto = subscribe
   special_use = \Trash
 }
 prefix = INBOX/
 separator = /
}
passdb {
 args = /usr/local/etc/dovecot/dovecot-ldap.conf.ext
 driver = ldap
}
plugin {
 acl = vfile:/usr/local/etc/dovecot/global-acls
 acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes
 mail_log_events = flag_change delete undelete expunge copy
 mailbox_delete mail box_rename
 mail_log_fields = uid box msgid size flags
 quota = dict:User quota::file:%h/dovecot-quota
 quota_warning = storage=95%% quota-warning 95 %u
 quota_warning2 = storage=80%% quota-warning 80 %u
 sieve = ~/.dovecot.sieve
 sieve_dir = ~/sieve
 stats_command_min_time = 1 mins
 stats_domain_min_time = 12 hours
 stats_ip_min_time = 12 hours
 stats_memory_limit = 16 M
 stats_refresh = 30
 stats_session_min_time = 15 mins
 stats_track_cmds = yes
 stats_user_min_time = 1 hours
 zlib_save = gz
 zlib_save_level = 6
}
postmaster_address = postmaster at foo.bar
protocols = imap lmtp sieve
service auth {
 unix_listener /var/spool/postfix/private/auth {
   mode = 0666
 }
 unix_listener auth-userdb {
   group = vmail
   user = vmail
 }
}
service lmtp {
 unix_listener /var/spool/postfix/private/lmtp-dovecot {
   group = postfix
   user = postfix
 }
}
service managesieve-login {
 inet_listener sieve {
   port = 4190
 }
 process_min_avail = 0
 service_count = 0
}
service managesieve {
 process_limit = 1024
}
service quota-warning {
 executable = script /usr/local/bin/quota-warning.sh
 unix_listener quota-warning {
   user = vmail
 }
 user = vmail
}
service stats {
 fifo_listener stats-mail {
   mode = 0600
   user = vmail
 }
}
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_dh =  # hidden, use -P to show it
ssl_key =  # hidden, use -P to show it
userdb {
 driver = prefetch
}
userdb {
 args = /usr/local/etc/dovecot/dovecot-ldap-userdb.conf.ext
 driver = ldap
}
protocol lmtp {
 mail_plugins = zlib quota acl mail_log notify sieve
}
protocol lda {
 mail_plugins = zlib quota acl mail_log notify sieve
}
protocol imap {
 mail_plugins = zlib quota acl mail_log notify imap_zlib imap_quota
imap_acl }  
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