Hi,
I'm here with a follow-up. I have managed to fix this issue!
I have rebuilt the entire project from scratch, using vanilla versions
of Dovecot, Postfix, SOGO webmail etc and everything works as expected:
emails are getting encrypted, I'm able to send, receive and read emails
in webmail. I suspect the root of the issue was that I was using
software package called iredmail. My guess is that all the master admin
drama was caused by iredmail. Big thanks to you guys for the hints and
ideas which eventually helped me troubleshoot this issue! I appreciate
your assistance.
P.S. Btw, is there any way to hide plain text passwords from Dovecot log
files? Disabling auth debugging won't help as the system may get
compromised and the intruder can re-enable logs and grab the passwords
from the logs. The only person who should know/see the password in clear
text should be the respective mail user. Is there any way to achieve
this?
On 2022-09-15 08:16, Aki Tuomi wrote:
On 14/09/2022 19:34 EEST Serveria Support <supp...@serveria.com>
wrote:
Thanks for your help. Do you know in which folder the keys are stored?
I'd like to check the permissions...
Some notes here, after reading this thread again:
- Keys are stored in mail_attributes file, which depends on your
config, but usually is %h/dovecot-attributes, which means it'll be in
user's home directory.
- The key format is Dovecot Dcrypt Key, you can use `doveadm mailbox
cryptokey export` to export them in PEM format. Only **global keys**
expect PEM formatted keys, which you are not using.
- If you are using mail_crypt_private_password to encrypt the user
key, you will need to provide this every time you want to access the
user's emails, including using doveadm. Dovecot does not know what
password you are using.
- Your logs indicate that you are, still, using master userdb. This
will not work. You cannot use master users with per-user encryption
passwords in the way you do. If you want to use master users / master
password, you must not encrypt the user key.
- You should really focus on reading your logs, because they really do
indicate that the userdb_mail_crypt_private_password is not exprted in
anywhere, so clearly and obviously you are not able to access the
mails.
Maybe consider removing the master user authentication completely?
Aki
