Dovecot mail-crypt webmail can't read encrypted messages
Serveria Support
support at serveria.com
Wed Sep 14 14:11:15 UTC 2022
How can I set the global private key in conf? I was following the
official mail-crypt tutorial. This is what I have in dovecot.conf
mail-crypt section:
mail_crypt_curve = secp521r1
mail_crypt_save_version = 2
mail_crypt_require_encrypted_user_key = yes
On 2022-09-14 17:23, hi at zakaria.website wrote:
> On 2022-09-14 14:41, Serveria Support wrote:
>> Hi,
>>
>> This log shows no errors. Running doveadm fetch command gives me this:
>>
>> doveadm(user at mydomain.xyz): Error: fetch(text) failed for box=INBOX
>> uid=15: read() failed:
>> read(/var/vmail/vmail1/mydomain.xyz/a/b/d/xxxxxxxx-2022.09.09.05.52.29//Maildir/cur/1663034263.M491074P1457418.mx,S=2217,W=2266:2,S)
>> failed: Private key not available: Cannot decrypt key
>> fd98762c573b8c54805884838695bd5b7eaeb9e0b0d326434c2f63a95a905a89:
>> Cannot decrypt key
>> 10fed5d3e938ce19a20046b84f29e50a271f6404f0760037996b4cf2d1ecfeb7:
>> Password not available
>>
>> On 2022-09-13 14:43, hi at zakaria.website wrote:
>>> On 2022-09-02 20:40, Serveria Support wrote:
>>>> 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';
>>>
>>> The logs doesn't show any errors?
>
> Private key not available? Isn't clear enough?
>
> Did you set the global private key in dovecot config?
>
> The error is saying the private key that meant to be used to decrypt
> emails is not found, thus it must be the path you set in mail crypt
> plugin definition is incorrect or private key file have either wrong
> ownership or permissions.
>
> Notice it has to be in .pem format as well.
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