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

[Stephan Bosch]

Op 01/05/2018 om 10:12 schreef 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?

Hmm, I am wondering whether we already fixed this one implicitly. I 
think we addressed some quota-related problems. Do you have the 
opportunity to test this with git master(-2.3) ?

Regards,

Stephan.


> 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 }