Ubuntu+dovecot+pam auth hiba

Megakadtam és már mindent átnéztem, amire gondolhattam. Hiba (/var/log/auth.log):

│Aug 18 16:59:32 aex-m unix_chkpwd[3320]: check pass; user unknown                                                                                                                  │
│Aug 18 16:59:32 aex-m unix_chkpwd[3321]: check pass; user unknown                                                                                                                  │
│Aug 18 16:59:32 aex-m unix_chkpwd[3321]: password check failed for user (john)                                                                                                     │
│Aug 18 16:59:32 aex-m auth: pam_unix(dovecot:auth): authentication failure; logname= uid=111 euid=111 tty=dovecot ruser=john rhost=  user=john

es a mail.log:

│Aug 18 16:59:46 aex-m dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=doveadm#011debug#011resp=hash%%% (previous base64 data ma│
y contain sensitive data)                                                                                                                                                           │
│Aug 18 16:59:50 aex-m dovecot: auth: Debug: pam(balazs.kiss): Performing passdb lookup                                                                                             │
│Aug 18 16:59:50 aex-m dovecot: auth-worker(3319): Debug: conn unix:auth-worker (pid=3318,uid=111): auth-worker<2>: Handling PASSV request                                          │
│Aug 18 16:59:50 aex-m dovecot: auth-worker(3319): Debug: pam(balazs.kiss): Performing passdb lookup                                                                                │
│Aug 18 16:59:50 aex-m dovecot: auth-worker(3319): Debug: pam(balazs.kiss): lookup service=dovecot                                                                                  │
│Aug 18 16:59:50 aex-m dovecot: auth-worker(3319): Debug: pam(balazs.kiss): #1/1 style=1 msg=Password:                                                                              │
│Aug 18 16:59:52 aex-m dovecot: auth-worker(3319): pam(balazs.kiss): pam_authenticate() failed: Authentication failure (Password mismatch?) (given password: hash%%%)             │
│Aug 18 16:59:52 aex-m dovecot: auth-worker(3319): Debug: pam(balazs.kiss): Finished passdb lookup                                                                                  │
│Aug 18 16:59:52 aex-m dovecot: auth-worker(3319): Debug: conn unix:auth-worker (pid=3318,uid=111): auth-worker<2>: Finished                                                        │
│Aug 18 16:59:52 aex-m dovecot: auth: Debug: pam(balazs.kiss): Finished passdb lookup                                                                                               │
│Aug 18 16:59:52 aex-m dovecot: auth: Debug: auth(balazs.kiss): Auth request finished                                                                                               │
│Aug 18 16:59:54 aex-m dovecot: auth: Debug: client passdb out: FAIL#0111#011user=balazs.kiss

A pam és a dovecot elvileg össze van hangolva (meg a postfix is, de ez most nem lényeg). Ssh-n be tudok lépni a fenti user-el hiba nélkül, de a doveadm nem hitelesít:

doveadm -D auth test balazs.kiss

Password:
passdb: balazs.kiss auth failed
extra fields:
  user=balazs.kiss

Előre is köszönöm a segítséget!