User doesn't exist

[J. Echter]

Am 14.08.20 um 11:45 schrieb Bruno Kiste:
> I try to use dovecot as a MTA with postfix.
> But it does not accept incoming mails.
> Why does it not work?
>
> [root at localhost bruno]# dovecot --version
> 2.3.8 (9df20d2db)
>
> /var/log/maillog
> Aug 14 11:03:32 localhost dovecot[566097]: lmtp(566373): Connect from
> local
> Aug 14 11:03:32 localhost dovecot[566097]:
> lmtp(bruno at 2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>:
> Debug: auth-master: userdb lookup(bruno at 2c2axxx.online-server.cloud):
> Started userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]:
> lmtp(bruno at 2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>:
> Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting
> Aug 14 11:03:32 localhost dovecot[566097]:
> lmtp(bruno at 2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>:
> Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Client
> connected (fd=16)
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: master in:
> USER#0111#011bruno at 2c2axxx.online-server.cloud#011service=lmtp
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug:
> passwd(bruno at 2c2axxx.online-server.cloud): Performing userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> Loading modules from directory: /usr/lib64/dovecot/auth
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> Module loaded: /usr/lib64/dovecot/auth/lib20_auth_var_expand_crypt.so
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> passwd-file /etc/dovecot/users: Read 4 users in 0 secs
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> conn unix:auth-worker (pid=566367,uid=97): Server accepted connection
> (fd=14)
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> conn unix:auth-worker (pid=566367,uid=97): Sending version handshake
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> conn unix:auth-worker (pid=566367,uid=97): auth-worker<1>: Handling
> USER request
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> passwd(bruno at 2c2axxx.online-server.cloud): Performing userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> passwd(bruno at 2c2axxx.online-server.cloud): lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374):
> passwd(bruno at 2c2axxx.online-server.cloud): unknown user  - trying the
> next userdb
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> passwd(bruno at 2c2axxx.online-server.cloud): Finished userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug:
> conn unix:auth-worker (pid=566367,uid=97): auth-worker<1>: Finished
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug:
> passwd(bruno at 2c2axxx.online-server.cloud): Finished userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug:
> passwd-file(bruno at 2c2axxx.online-server.cloud): Performing userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug:
> passwd-file(bruno at 2c2axxx.online-server.cloud): lookup:
> user=bruno at 2c2axxx.online-server.cloud file=/etc/dovecot/users
> Aug 14 11:03:32 localhost dovecot[566097]: auth:
> passwd-file(bruno at 2c2axxx.online-server.cloud): unknown user
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug:
> passwd-file(bruno at 2c2axxx.online-server.cloud): Finished userdb lookup
> Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: userdb out:
> NOTFOUND#0111
> Aug 14 11:03:32 localhost dovecot[566097]:
> lmtp(bruno at 2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>:
> Debug: auth-master: userdb lookup(bruno at 2c2axxx.online-server.cloud):
> auth USER input:
> Aug 14 11:03:32 localhost dovecot[566097]:
> lmtp(bruno at 2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>:
> Debug: auth-master: userdb lookup(bruno at 2c2axxx.online-server.cloud):
> Userdb lookup failed
> Aug 14 11:03:32 localhost postfix/lmtp[566372]: 4E2127802973:
> to=<bruno at 2c2axxx.online-server.cloud>,
> relay=2c2axxx.online-server.cloud[private/dovecot-lmtp], delay=0.26,
> delays=0.19/0.02/0.02/0.02, dsn=5.1.1, status=bounced (host
> 2c2axxx.online-server.cloud[private/dovecot-lmtp] said: 550 5.1.1
> <bruno at 2c2axxx.online-server.cloud> User doesn't exist:
> bruno at 2c2axxx.online-server.cloud (in reply to RCPT TO command))
>
> [root at localhost bruno]# cat /etc/dovecot/users
> #user:password:uid:gid:(gecos):home:(shell):extra_fields
> bruno:{CRAM-MD5}88XXXee:5001:5001::/home/bruno::
> mail:{CRAM-MD5}88XXXee:5001:5001::/home/mail::
> nas:{CRAM-MD5}8eXXX40:5001:5001::/home/nas
> asys:{CRAM-MD5}99XXX09:5001:5001::/home/asys


Hi,

it seems to look for user bruno at 2c2axxx.online-server.cloud which
doesn't exist.