Dovecot mail-crypt webmail can't read encrypted messages

[Serveria Support]

I tried it but it doesn't seem to make any difference at all.

Can someone please assist me with reading logs? Does this log below mean 
Dovecot is trying to use master_user again or simply reading master_user 
password file?

Sep  2 15:35:33 mx dovecot: auth: Debug: Read auth token secret from 
/run/dovecot/auth-token-secret.dat
Sep  2 15:35:33 mx dovecot: auth: Debug: passwd-file 
/etc/dovecot/dovecot-master-users: Read 1 users in 0 secs
Sep  2 15:35:33 mx dovecot: auth: Debug: auth client connected 
(pid=900284)
Sep  2 15:35:33 mx dovecot: auth: Debug: client in: 
AUTH#0111#011PLAIN#011service=imap#011secured=tls#011session=Vfxm1bbnRo9/AAAB#011lip=127.0.0.1#011rip=127.0.0.1#011lport=143#011rport=36678#011local_name=127.0.0.1#011resp=AHRlc3RvQG1haWxjaXRhZGVsLnh5egA0SFBYMWt0OSE= 
(previous base64 data may contain sensitive data)

Everything ok here?

Sep  2 15:25:34 mx dovecot: auth: Debug: auth client connected 
(pid=899859)
Sep  2 15:25:34 mx dovecot: auth: Debug: client in: 
AUTH#0111#011PLAIN#011service=imap#011secured=tls#011session=97OusbbnXI1/AAAB#011lip=127.0.0.1#011rip=127.0.0.1#011lport=143#011rport=36188#011local_name=127.0.0.1#011resp=AHRlc3RvQG1haWxjaXRhZGVsLnh5egA0SFBYMWt0OSE= 
(previous base64 data may contain sensitive data)
Sep  2 15:25:34 mx dovecot: auth: Debug: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Performing passdb 
lookup
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<3>: Handling PASSV 
request
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<3>: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Performing passdb 
lookup
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<3>: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): query: SELECT 
mailbox.password, mailbox.allow_nets FROM mailbox,domain WHERE 
mailbox.username='user1 at mydomain.xyz' AND mailbox.`enableimaptls`=1 AND 
mailbox.active=1 AND mailbox.domain=domain.domain AND domain.backupmx=0 
AND domain.active=1
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<3>: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Finished passdb 
lookup
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<3>: Finished
Sep  2 15:25:34 mx dovecot: auth: Debug: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Finished passdb 
lookup
Sep  2 15:25:34 mx dovecot: auth: Debug: 
auth(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Auth request 
finished
Sep  2 15:25:34 mx dovecot: auth: Debug: client passdb out: 
OK#0111#011user=user1 at mydomain.xyz
Sep  2 15:25:34 mx dovecot: auth: Debug: master in: 
REQUEST#0111998585857#011899859#0111#01131314e9e09e38b194a05b78bfe279780#011session_pid=899860#011request_auth_token
Sep  2 15:25:34 mx dovecot: auth: Debug: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Performing userdb 
lookup
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<4>: Handling USER 
request
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<4>: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Performing userdb 
lookup
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<4>: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): SELECT 
LOWER(CONCAT(mailbox.storagebasedirectory, '/', mailbox.storagenode, 
'/', mailbox.maildir)) AS home, CONCAT(mailbox.mailboxformat, ':~/', 
mailbox.mailboxfolder) AS mail, CONCAT('*:bytes=', 
mailbox.quota*1048576) AS quota_rule FROM mailbox,domain WHERE 
mailbox.username='user1 at mydomain.xyz' AND mailbox.`enableimaptls`=1 AND 
mailbox.active=1 AND mailbox.domain=domain.domain AND domain.backupmx=0 
AND domain.active=1
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<4>: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Finished userdb 
lookup
Sep  2 15:25:34 mx dovecot: auth-worker(899854): Debug: conn 
unix:auth-worker (pid=899853,uid=110): auth-worker<4>: Finished
Sep  2 15:25:34 mx dovecot: auth: Debug: 
sql(user1 at mydomain.xyz,127.0.0.1,<97OusbbnXI1/AAAB>): Finished userdb 
lookup
Sep  2 15:25:34 mx dovecot: auth: Debug: master userdb out: 
USER#0111998585857#011user1 at mydomain.xyz#011home=/var/vmail/vmail1/mydomain.xyz/t/e/s/xxxxx-2022.08.30.06.07.08/#011mail=maildir:~/Maildir#011quota_rule=*:bytes=1073741824#011auth_mech=PLAIN#011auth_token=fac9c351492fd6073176272c79ff65b1b3e87f37

Sep  2 15:25:34 mx dovecot: 
imap(user1 at mydomain.xyz)<899860><97OusbbnXI1/AAAB>: Debug: Added userdb 
setting: mail=maildir:~/Maildir
Sep  2 15:25:34 mx dovecot: 
imap(user1 at mydomain.xyz)<899860><97OusbbnXI1/AAAB>: Debug: Added userdb 
setting: plugin/quota_rule=*:bytes=1073741824
Sep  2 15:25:34 mx dovecot: 
imap(user1 at mydomain.xyz)<899860><97OusbbnXI1/AAAB>: Debug: Effective 
uid=2000, gid=2000, 
home=/var/vmail/vmail1/mydomain.xyz/t/e/s/xxxxx-2022.08.30.06.07.08/

Any ideas?

On 2022-09-02 20:08, dovecot at ptld.com wrote:
>> password_query = SELECT \
>>   username as user, password, \
>>   '%w' AS userdb_mail_crypt_private_password \
>>   FROM mailbox WHERE username="%u";
> 
> Try if using ' instead of " makes a difference.
> FROM mailbox WHERE username='%u';