doveadm backup only working once?

Engelbert Torremans engelbert at torremans.com
Wed Jan 6 16:53:51 EET 2021 

OK. So you are suggesting that moving to mdbox could solve my problem?

I could migrate/reconfigure my "server2" to mdbox while keeping my 
"production/server1" running on mbox and backup everything from 
server1->server2 and switch over once everything proves to be working OK.

Engelbert

Op 6-1-2021 om 15:40 schreef Aki Tuomi:
> Hi!
>
> dsync has limited support to work with mbox format, which is mainly to get away from it.
>
> Aki
>
>> On 06/01/2021 16:37 Christian Kivalo <ml+dovecot at valo.at> wrote:
>>
>>   
>> On January 6, 2021 2:14:32 PM GMT+01:00, Engelbert Torremans <engelbert at torremans.com> wrote:
>>> All,
>>>
>>> Maybe a relevant piece of additional information that could help in
>>> figurring out what is going wrong here that I forgot to add in my
>>> previous posting.
>>>
>>> After the succesfull first backup execution using:
>>> #doveadm -D -v backup -R -f -u synctest tcp:192.168.3.1:12345
>>>
>>> as described in detail below the /var/mail/synctest inbox file contains
>>>
>>> this (using mail -f /var/mail/synctest):
>>>
>>> root at mail:/var/mail# mail -f synctest
>>> Mail version 8.1.2 01/15/2001.  Type ? for help.
>>> "synctest": 2 messages 2 unread
>>>> U  1 torremans at mail.to  Mon Jan 04 17:56   29/1016  Testmail 1
>>>   U  2 torremans at mail.to  Mon Jan 04 17:56   28/982   Testmail 2
>>>
>>> After the 2nd backup command (same command) it contains:
>>>
>>> root at server2:/var/mail# mail -f synctest
>>> Mail version 8.1.2 01/15/2001.  Type ? for help.
>>> "synctest": 1 message
>>>>     1 MAILER-DAEMON at ser  Wed Jan 06 14:05   13/534   DON'T DELETE THIS
>>> MESSAGE -- FOLDER INTERNAL DATA
>>>
>>> Looks like for some reason the inbox file is reset/recreated? Anybody
>>> any idea what could cause this behaviour? Running the doveadm backup
>>> command a 3rd of 4th time does not change the /var/mail/synctest file
>>> anymore. Also the date/time of the file is not updated anymore
>> I can't help with your specific problem but you should not use mbox anymore, especially with replication.
>>> Thanks,
>>>
>>> Engelbert
>>>
>>> Op 4-1-2021 om 18:25 schreef Engelbert Torremans:
>>>> All,
>>>>
>>>> For the past 2 weeks I have been trying to get dovecot mail backup
>>>> working between 2 debian 10 machines.
>>>>
>>>> Both machines are running the same OS (Debian 10) and configuration
>>>> wise they are similar (except of course ip addresses, hostnames etc).
>>>>
>>>> My "main" machine is called "server" and the 2nd machine is
>>> "server2".
>>>> See below for the dovecot -n output on server2.
>>>>
>>>> I created a testuser called synctest on both server1 and server2 and
>>>> have sent a couple (2) email messages to synctest at server.
>>>>
>>>> Those testmessages are now present in /var/mail/synctest mbox file on
>>>> server1.
>>>>
>>>> When trying to create a backup from server->server2 for user synctest
>>>> I use this command:
>>>>
>>>> #doveadm -D -v backup -R -f -u synctest tcp:192.168.3.1:12345
>>>> (using something similar from server1 -> server2 like this: #doveadm
>>>> -D -v backup -f -u synctest tcp:192.168.3.2:12345 has the same
>>> results
>>>> btw)
>>>>
>>>> The first attempte appears to be working OK but the the 2nd attempt
>>>> (nothing was changed on server1 before the 2nd attempt) fails with
>>>> soemthing like: Error: Couldn't delete mailbox INBOX: Permission
>>> denied
>>>> Before I can get a succesfull backup again I need to do this (on
>>> server2):
>>>> #rm /var/mail/synctest
>>>> #rm -r ~syncuser/mail/index/INBOX
>>>> #doveadm mailbox delete -u synctest INBOX
>>>> (if I don't do the rm /var/mail/synctest before the doveadm mailbox
>>>> delete command I will also get a:
>>>> Error: Can't delete mailbox INBOX: Permission denied
>>>>
>>>> Anybody any idea what is happening here? Should I enable replicator
>>>> and/or aggregator?
>>>>
>>>> Output of 1st and 2nd dovadm backup attempt is below:
>>>>
>>>> root at server2:/home/synctest/mail# doveadm -D -v backup -R -f -u
>>>> synctest tcp:192.168.3.1:12345
>>>> Debug: Loading modules from directory:
>>> /usr/lib/dovecot/modules/doveadm
>>>> Debug: Skipping module doveadm_acl_plugin, because dlopen() failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so:
>>>> undefined symbol: acl_user_module (this is usually intentional, so
>>>> just ignore this message)
>>>> Debug: Skipping module doveadm_expire_plugin, because dlopen()
>>> failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so:
>>>> undefined symbol: expire_set_deinit (this is usually intentional, so
>>>> just ignore this message)
>>>> Debug: Skipping module doveadm_quota_plugin, because dlopen() failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so:
>>>> undefined symbol: quota_user_module (this is usually intentional, so
>>>> just ignore this message)
>>>> Debug: Module loaded:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so
>>>> Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen()
>>>> failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so:
>>>> undefined symbol: lucene_index_iter_deinit (this is usually
>>>> intentional, so just ignore this message)
>>>> Debug: Skipping module doveadm_fts_plugin, because dlopen() failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so:
>>>> undefined symbol: fts_user_get_language_list (this is usually
>>>> intentional, so just ignore this message)
>>>> Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen()
>>>> failed:
>>>> /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so:
>>>> undefined symbol: mail_crypt_box_get_pvt_digests (this is usually
>>>> intentional, so just ignore this message)
>>>> doveadm(synctest)<13039><>: Debug: auth USER input: synctest
>>>> system_groups_user=synctest uid=1006 gid=100 home=/home/synctest
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): auth USER input:
>>>> synctest system_groups_user=synctest uid=1006 gid=100
>>> home=/home/synctest
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): Effective
>>>> uid=1006, gid=100, home=/home/synctest
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): Namespace inbox:
>>>> type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes,
>>>> subscriptions=yes
>>>>
>>> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): fs:
>>>> root=/home/synctest/mail/mailboxes, index=/home/synctest/mail/index,
>>>> indexpvt=, control=/home/synctest/mail/control,
>>>> inbox=/var/mail/synctest, alt=
>>>> doveadm(synctest): Debug: Effective uid=1006, gid=100,
>>> home=/home/synctest
>>>> doveadm(synctest): Debug: Namespace inbox: type=private, prefix=,
>>>> sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes
>>>>
>>> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> doveadm(synctest): Debug: fs: root=/home/synctest/mail/mailboxes,
>>>> index=/home/synctest/mail/index, indexpvt=,
>>>> control=/home/synctest/mail/control, inbox=/var/mail/synctest, alt=
>>>> doveadm(synctest): Debug: brain M: Namespace  has location
>>>>
>>> mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> doveadm(synctest): Debug: Namespace : Using permissions from
>>>> /home/synctest/mail/mailboxes: mode=0700 gid=default
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Remote
>>>> mailbox tree: INBOX guid=f8ecea204a65f05fea460000b4581695
>>>> uid_validity=1609590090 uid_next=9 subs=no last_change=0 last_subs=0
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M:
>>> Mailbox
>>>> INBOX: local=00000000000000000000000000000000/0/0,
>>>> remote=f8ecea204a65f05fea460000b4581695/0/1: mailbox not selectable
>>> yet
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
>>>> permissions
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> Using permissions from /home/synctest/mail/mailboxes: mode=0700
>>>> gid=default
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
>>>> permissions
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> Using permissions from /home/synctest/mail/mailboxes: mode=0700
>>>> gid=default
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
>>>> permissions
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> Using permissions from /home/synctest/mail/mailboxes: mode=0700
>>>> gid=default
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
>>>> permissions
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
>>>> Using permissions from /home/synctest/mail/mailboxes: mode=0700
>>>> gid=default
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=1 hdr_hash=
>>>> result=Expunged mail not found locally
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=2 hdr_hash=
>>>> result=Expunged mail not found locally
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=3 hdr_hash=
>>>> result=Expunged mail not found locally
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=4 hdr_hash=
>>>> result=Expunged mail not found locally
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=5 hdr_hash=
>>>> result=Expunged mail not found locally
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=6 hdr_hash=
>>>> result=Expunged mail not found locally
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Last common UID=0. Delayed expunges=
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=save GUID=8bce3bc615e7f2a1dfad970a3cd36bdb
>>>> UID=7 hdr_hash= result=Mail's UID is above local UIDNEXT - No more
>>>> local mails found
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=save GUID=c9cdf5f725d4195db78b20bbacad189b
>>>> UID=8 hdr_hash= result=New mail
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: import
>>>> mail uid 0 guid 8bce3bc615e7f2a1dfad970a3cd36bdb
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import mail body for GUID=8bce3bc615e7f2a1dfad970a3cd36bdb
>>> UID=0
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug:
>>>> /home/synctest/mail/index/INBOX/dovecot.index.cache: Compressed,
>>>> file_seq changed 0 -> 1609779677, size=32, max_uid=0
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: import
>>>> mail uid 0 guid c9cdf5f725d4195db78b20bbacad189b
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import mail body for GUID=c9cdf5f725d4195db78b20bbacad189b
>>> UID=0
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Saved UIDs: 7:8
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Finish update: min_next_uid=9 min_first_recent_uid=1
>>>> min_highest_modseq=10 min_highest_pvt_modseq=0
>>>> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
>>>> INBOX: Reassign UIDs: 1:
>>>>
>>>> This appears to work perfectly well the first time (maybe I am
>>>> overlooking some issue already at this stage?) At least after the
>>>> backup has been completed /var/mail/syncuser on server2 contains all
>>>> the messages that are also present on server1. And the
>>>> ~syncuser/mail/index/INBOX folder also exists (don't know why this is
>>>> created btw?)
>>>>
>>>> But then when running the same command for the 2nd time (and no
>>>> changes on the /var/mail/synctest file on server1) the command failes
>>>> like this (permission denied to delete INBOX at the end):
>>>>
>>>> root at server2:/home/synctest/mail# doveadm -D -v backup -R -f -u
>>>> synctest tcp:192.168.3.1:12345
>>>> Debug: Loading modules from directory:
>>> /usr/lib/dovecot/modules/doveadm
>>>> Debug: Skipping module doveadm_acl_plugin, because dlopen() failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so:
>>>> undefined symbol: acl_user_module (this is usually intentional, so
>>>> just ignore this message)
>>>> Debug: Skipping module doveadm_expire_plugin, because dlopen()
>>> failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so:
>>>> undefined symbol: expire_set_deinit (this is usually intentional, so
>>>> just ignore this message)
>>>> Debug: Skipping module doveadm_quota_plugin, because dlopen() failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so:
>>>> undefined symbol: quota_user_module (this is usually intentional, so
>>>> just ignore this message)
>>>> Debug: Module loaded:
>>>> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so
>>>> Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen()
>>>> failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so:
>>>> undefined symbol: lucene_index_iter_deinit (this is usually
>>>> intentional, so just ignore this message)
>>>> Debug: Skipping module doveadm_fts_plugin, because dlopen() failed:
>>>> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so:
>>>> undefined symbol: fts_user_get_language_list (this is usually
>>>> intentional, so just ignore this message)
>>>> Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen()
>>>> failed:
>>>> /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so:
>>>> undefined symbol: mail_crypt_box_get_pvt_digests (this is usually
>>>> intentional, so just ignore this message)
>>>> doveadm(synctest)<13056><>: Debug: auth USER input: synctest
>>>> system_groups_user=synctest uid=1006 gid=100 home=/home/synctest
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): auth USER input:
>>>> synctest system_groups_user=synctest uid=1006 gid=100
>>> home=/home/synctest
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): Effective
>>>> uid=1006, gid=100, home=/home/synctest
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): Namespace inbox:
>>>> type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes,
>>>> subscriptions=yes
>>>>
>>> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> doveadm(synctest): Debug: remote(192.168.3.1:12345): fs:
>>>> root=/home/synctest/mail/mailboxes, index=/home/synctest/mail/index,
>>>> indexpvt=, control=/home/synctest/mail/control,
>>>> inbox=/var/mail/synctest, alt=
>>>> doveadm(synctest): Debug: Effective uid=1006, gid=100,
>>> home=/home/synctest
>>>> doveadm(synctest): Debug: Namespace inbox: type=private, prefix=,
>>>> sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes
>>>>
>>> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> doveadm(synctest): Debug: fs: root=/home/synctest/mail/mailboxes,
>>>> index=/home/synctest/mail/index, indexpvt=,
>>>> control=/home/synctest/mail/control, inbox=/var/mail/synctest, alt=
>>>> doveadm(synctest): Debug: brain M: Namespace  has location
>>>>
>>> mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> doveadm(synctest): Debug: Namespace :
>>>> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
>>>> permissions
>>>> doveadm(synctest): Debug: Namespace : Using permissions from
>>>> /home/synctest/mail/mailboxes: mode=0700 gid=default
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Local
>>>> mailbox tree: INBOX guid=f8ecea204a65f05fea460000b4581695
>>>> uid_validity=1609590090 uid_next=9 subs=no last_change=0 last_subs=0
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Remote
>>>> mailbox tree: INBOX guid=f8ecea204a65f05fea460000b4581695
>>>> uid_validity=1609590090 uid_next=9 subs=no last_change=0 last_subs=0
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M:
>>> Mailbox
>>>> INBOX: local=f8ecea204a65f05fea460000b4581695/0/1,
>>>> remote=f8ecea204a65f05fea460000b4581695/0/1: Mailboxes are equal
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: Namespace :
>>>> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
>>>> permissions
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: Namespace :
>>>> Using permissions from /home/synctest/mail/mailboxes: mode=0700
>>>> gid=default
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=1 hdr_hash=
>>>> result=Expunged mail has no GUID, can't verify it
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=2 hdr_hash=
>>>> result=Expunged mail has no GUID, can't verify it
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=3 hdr_hash=
>>>> result=Expunged mail has no GUID, can't verify it
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=4 hdr_hash=
>>>> result=Expunged mail has no GUID, can't verify it
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=5 hdr_hash=
>>>> result=Expunged mail has no GUID, can't verify it
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=expunge GUID=<unknown> UID=6 hdr_hash=
>>>> result=Expunged mail has no GUID, can't verify it
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Warning: Deleting
>>>> mailbox 'INBOX': UID=7 already exists locally for a different mail:
>>>> Headers hashes don't match (9fc2f2229a1a2a8d5f12304cb5287f97 vs
>>>> b62e0281b4f375a45040c552b55ab31a)
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Import change type=save GUID=8bce3bc615e7f2a1dfad970a3cd36bdb
>>>> UID=7 hdr_hash=9fc2f2229a1a2a8d5f12304cb5287f97 result=Headers hashes
>>>> don't match (9fc2f2229a1a2a8d5f12304cb5287f97 vs
>>>> b62e0281b4f375a45040c552b55ab31a)
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
>>>> INBOX: Saved UIDs:
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: doveadm-sieve:
>>>> Iterating Sieve mailbox attributes
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve:
>>>> Pigeonhole version 0.5.4 () initializing
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: include:
>>>> sieve_global is not set; it is currently not possible to include
>>>> `:global' scripts.
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
>>>> storage: Using active Sieve script path:
>>> /home/synctest/.dovecot.sieve
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
>>>> storage: Using script storage path: /home/synctest/sieve
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
>>>> storage: Using permissions from /home/synctest/sieve: mode=0700
>>> gid=-1
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
>>>> storage: Relative path to sieve storage in active link: sieve/
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
>>>> storage: sync: Synchronization active
>>>> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Error: Couldn't delete
>>>> mailbox INBOX: Permission denied
>>>>
>>>> root at server2:/home/synctest/mail# dovecot -n
>>>> # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
>>>> # Pigeonhole version 0.5.4 ()
>>>> # OS: Linux 4.19.0-12-amd64 x86_64 Debian 10.6
>>>> # Hostname: server2.fritz.box
>>>> auth_username_format = %Ln
>>>> doveadm_password = # hidden, use -P to show it
>>>> lda_mailbox_autocreate = yes
>>>> login_trusted_networks = 192.168.3.0/24
>>>> mail_location =
>>>>
>>> mbox:~/mail/mailboxes:INBOX=/var/mail/%u:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
>>>> mail_privileged_group = mail
>>>> 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
>>>> 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 {
>>>>    driver = pam
>>>> }
>>>> plugin {
>>>>    sieve = ~/.dovecot.sieve
>>>>    sieve_default = /var/lib/dovecot/sieve/default.sieve
>>>>    sieve_dir = ~/sieve
>>>> }
>>>> postmaster_address = postmaster@"domain"
>>>> protocols = imap pop3 lmtp
>>>> service doveadm {
>>>>    inet_listener {
>>>>      port = 12345
>>>>    }
>>>> }
>>>> service managesieve-login {
>>>>    inet_listener sieve {
>>>>      port = 4190
>>>>    }
>>>> }
>>>> ssl_cert = </etc/letsencrypt/live/"domain"/fullchain.pem
>>>> ssl_dh = # hidden, use -P to show it
>>>> ssl_key = # hidden, use -P to show it
>>>> userdb {
>>>>    driver = passwd
>>>> }
>>>> protocol lmtp {
>>>>    mail_plugins = " sieve"
>>>> }
>>>> protocol lda {
>>>>    mail_plugins = " sieve"
>>>> }
>>>>
>> -- 
>> Christian Kivalo

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