strange file .temp.1592374672.P11164Q21M692534.hostname - doveadm altmove

[Gionatan Danti]

Il 2020-11-01 13:23 John Stoffel ha scritto:
> How is your "mail_location" defined in your configuration?  And what
> is your search term?
> 
> John

Hi, I just discovered having such strange .temp files on an old server 
of mine.

In some folders I have hundred of such files, but they really are 
hardlinks to the same .temp file (for each folder), so they do not 
consume much space. These files seems much more common in the Trash 
folder, but they appear even in other folder.

An example of a folder with 6 .temp files:
[root at mail dbox-Mails]# ls -al 
/var/vmail/domain/user/dbox/mailboxes/INBOX/Trash/dbox-Mails
drwxr-x---. 2 vmail vmail     4096 Oct 31 12:42 .
drwxr-x---. 3 vmail vmail     4096 Mar 17  2020 ..
-rw-r-----. 1 vmail vmail      512 Oct 29 09:45 dovecot.index
-rw-r-----. 1 vmail vmail      392 Oct 28 13:59 dovecot.index.backup
-rw-r-----. 1 vmail vmail    55296 Oct 31 12:42 dovecot.index.cache
-rw-r-----. 1 vmail vmail    23536 Oct 31 12:42 dovecot.index.log
-rw-r-----. 6 vmail vmail 22215889 Oct 12 10:42 
.temp.1602492703.P47358Q0M194142.hostname
-rw-r-----. 6 vmail vmail 22215889 Oct 12 10:42 
.temp.1602494002.P50402Q0M898232.hostname
-rw-r-----. 6 vmail vmail 22215889 Oct 12 10:42 
.temp.1602494013.P50446Q0M771524.hostname
-rw-r-----. 6 vmail vmail 22215889 Oct 12 10:42 
.temp.1602494621.P51761Q0M119496.hostname
-rw-r-----. 6 vmail vmail 22215889 Oct 12 10:42 
.temp.1602494745.P51954Q0M387071.hostname
-rw-r-----. 6 vmail vmail 22215889 Oct 12 10:42 
.temp.1602495419.P53185Q0M671512.hostname
-rw-r-----. 1 vmail vmail   848909 Oct 29 21:12 u.1623

6x 22M files = 128M...
[root at mail dbox-Mails]# du -hscl .temp.160249*
22M     .temp.1602492703.P47358Q0M194142.hostname
22M     .temp.1602494002.P50402Q0M898232.hostname
22M     .temp.1602494013.P50446Q0M771524.hostname
22M     .temp.1602494621.P51761Q0M119496.hostname
22M     .temp.1602494745.P51954Q0M387071.hostname
22M     .temp.1602495419.P53185Q0M671512.hostname
128M    total

...but only 22M really consumed (1 file, 6 hardlinks)
[root at mail dbox-Mails]# du -hsc .temp.160249*
22M     .temp.1602492703.P47358Q0M194142.hostname
22M     total

I never run doveadm altmove; moreover, these .tempo files are both old 
(>1 year) and new (~3 weeks ago). Below you can find the output from 
dovecot -n. Any ideas?
Thanks.

[root at mail tmp]# doveconf -n
# 2.0.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-754.15.3.el6.x86_64 x86_64 CentOS release 6.10 
(Final)
auth_mechanisms = plain login
auth_verbose_passwords = plain
default_process_limit = 300
disable_plaintext_auth = no
mail_location = sdbox:~/dbox
mail_plugins = " quota"
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
mbox_write_locks = fcntl
passdb {
   args = /etc/dovecot/conf.d/dovecot-sql.conf.ext
   driver = sql
}
plugin {
   autocreate = INBOX/Spam
   autocreate2 = INBOX/Trash
   autosubscribe = INBOX/Spam
   autosubscribe2 = INBOX/Trash
   quota = dict:User quota::file:%h/dbox/quota
   quota_rule = *:storage=1G
   sieve = ~/.dovecot.sieve
   sieve_after = /var/vmail/dovecot.sieve
   sieve_before = /var/vmail/autoreply.sieve
   sieve_dir = ~/sieve
}
protocols = imap pop3 lmtp sieve
service auth {
   unix_listener /var/spool/postfix/private/auth {
     mode = 0666
   }
}
service managesieve-login {
   inet_listener sieve {
     port = 4190
   }
}
ssl_cert = </etc/letsencrypt/live/hostname/fullchain.pem
ssl_key = </etc/letsencrypt/live/hostname/privkey.pem
userdb {
   args = /etc/dovecot/conf.d/dovecot-sql.conf.ext
   driver = sql
}
userdb {
   args = uid=vmail gid=vmail home=/var/vmail/%d/%n
   driver = static
}
verbose_ssl = yes
protocol lmtp {
   mail_plugins = " quota sieve"
}
protocol imap {
   mail_plugins = " quota quota imap_quota autocreate"
}
[root at mail tmp]#

-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti at assyoma.it - info at assyoma.it
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