When new mail comes I would assume that both virtual mailboxes should actually see the message but whilst an imap search command gets a result in the virtual/combined for some reason not every message is seen in virtual all - so was wondering what exactly does

'inthread refs x-mailbox INBOX'

do ? I would have thought new mail to inbox would just have a thread of 1 and be seen. If i remove the indexes from virtual then the messages appear so am thinking something not quite triggering an action. Any ideas ? What can I do to try and track down where problem lies or am i misunderstanding what 'inthread refs x-mailbox INBOX' should do ????

== 8< ==========

# doveconf -n
# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.21 (92477967)
doveconf: Warning: service auth { client_limit=5000 } is lower than required under max. load (26096)
doveconf: Warning: service anvil { client_limit=5000 } is lower than required under max. load (9715)
# OS: Linux 3.10.0-693.11.6.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core)
auth_cache_negative_ttl = 2 mins
auth_cache_ttl = 3 mins
auth_master_user_separator = *
auth_mechanisms = plain login
auth_verbose = yes
auth_worker_max_count = 100
default_client_limit = 8192
default_process_limit = 8192
default_vsz_limit = 512 M
disable_plaintext_auth = no
doveadm_password = # hidden, use -P to show it
imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags
imap_idle_notify_interval = 1 mins
login_greeting = IMAP/POP3 ready - us11-001dm
mail_attachment_dir = /var/mail/sis/%Ld
mail_cache_min_mail_count = 5
mail_debug = yes
mail_plugins = " quota virtual"
mailbox_list_index = yes
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 index ihave duplicate mime foreverypart extracttext vacation-seconds spamtest spamtestplus editheader
mbox_write_locks = fcntl
mmap_disable = yes
namespace inbox {
inbox = yes
list = yes
location =
mailbox Archive {
    auto = create
    special_use = \Archive
}
mailbox Drafts {
    auto = create
    special_use = \Drafts
}
mailbox Sent {
    auto = create
    special_use = \Sent
}
mailbox Spam {
    auto = create
    special_use = \Junk
}
mailbox Trash {
    auto = create
    special_use = \Trash
}
prefix = INBOX/
separator = /
type = private
}
namespace virtual {
list = no
location = virtual:/var/lib/mail/dovecot/virtual:INDEX=~/virtual
prefix = virtual/
separator = /
type = private
}
passdb {
args = /etc/dovecot/sql_users.conf
driver = sql
}
passdb {
args = /etc/dovecot/sql_admin.conf
driver = sql
}
plugin {
mail_log_events = delete expunge
mail_log_fields = uid box msgid size
quota = dict:UserQuota::file:%h/dovecot-quota
quota_rule2 = INBOX/Trash:storage=+10%%
sieve = file:~/sieve/user;active=~/.dovecot.sieve
sieve_default = file:/var/lib/mail/dovecot/sieve/default.sieve
sieve_default_name = default
sieve_editheader_max_header_size = 1k
sieve_extensions = +spamtest +spamtestplus +editheader +vacation-seconds
sieve_global = file:/var/lib/mail/dovecot/sieve
sieve_quota_max_scripts = 5
sieve_spamtest_max_value = 200
sieve_spamtest_status_header = X-spam-score-int: -?([[:digit:]]+)
sieve_spamtest_status_type = score
sieve_vacation_default_period = 10d
sieve_vacation_max_period = 30d
sieve_vacation_min_period = 1s
}
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
pop3_fast_size_lookups = yes
protocols = imap pop3 lmtp sieve
service anvil {
client_limit = 5000
}
service auth-worker {
user = $default_internal_user
}
service auth {
client_limit = 5000
unix_listener auth_client {
    mode = 0660
    user = exim
}
}
service doveadm {
client_limit = 10
inet_listener {
    address = *
    port = 4000
}
process_limit = 100
process_min_avail = 10
service_count = 1
}
service imap-login {
inet_listener imap {
    port = 143
}
inet_listener imaps {
    port = 993
    ssl = yes
}
process_limit = 500
process_min_avail = 10
service_count = 1
}
service imap {
executable = imap postlogin
process_limit = 500
}
service managesieve-login {
inet_listener sieve {
    port = 4190
}
process_limit = 20
process_min_avail = 10
service_count = 1
}
service managesieve {
process_limit = 1024
}
service pop3-login {
inet_listener pop3 {
    port = 110
}
inet_listener pop3s {
    port = 995
    ssl = yes
}
process_limit = 1000
process_min_avail = 5
service_count = 1
}
service pop3 {
process_limit = 500
}
service postlogin {
executable = script-login -d rawlog
}
shutdown_clients = no
ssl = required
ssl_cert = </etc/pki/dovecot/certs/dovecotl.com.pem
ssl_key = # hidden, use -P to show it
userdb {
driver = prefetch
}
userdb {
args = /etc/dovecot/sql_users.conf
driver = sql
}
protocol imap {
imap_capability = +SPECIAL-USE
mail_max_userip_connections = 50
mail_plugins = " quota virtual imap_quota"
}
protocol pop3 {
mail_max_userip_connections = 20
mail_plugins = " quota virtual"
}
protocol lmtp {
auth_username_format = %Lu
mail_plugins = " quota virtual sieve quota"
postmaster_address = mailer-daemon
}

======= 8< ==========

The below were searches in performed in the two mailboxes .. showing the found/not found status.

search in vritual/all

? search header Message-ID <

5A8663D6.5000704@the-bryants.net

> * SEARCH ? OK Search completed (0.246 + 0.000 + 0.245 secs). search in virtual combined
? search header Message-ID <

5A8663D6.5000704@the-bryants.net

> * SEARCH 29268 ? OK Search completed (0.179 + 0.000 + 0.178 secs). rgds

Matt

--