Match unknown user in dovecot's passwd-file auth database

ChangeLog

@@ -10,6 +10,8 @@ ver. 0.9.3 (2015/XX/XXX) - wanna-be-released
 -----------
 
 - Fixes:
+   * filter.d/dovecot.conf - also match unknown user in passwd-file.
+     Thanks Anton Shestakov
 
 - New Features:
 

config/filter.d/dovecot.conf

@@ -12,7 +12,7 @@ _daemon = (auth|dovecot(-auth)?|auth-worker)
 failregex = ^%(__prefix_line)s(%(__pam_auth)s(\(dovecot:auth\))?:)?\s+authentication failure; logname=\S* uid=\S* euid=\S* tty=dovecot ruser=\S* rhost=<HOST>(\s+user=\S*)?\s*$
             ^%(__prefix_line)s(pop3|imap)-login: (Info: )?(Aborted login|Disconnected)(: Inactivity)? \(((auth failed, \d+ attempts)( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)\):( user=<\S*>,)?( method=\S+,)? rip=<HOST>(, lip=(\d{1,3}\.){3}\d{1,3})?(, TLS( handshaking(: SSL_accept\(\) failed: error:[\dA-F]+:SSL routines:[TLS\d]+_GET_CLIENT_HELLO:unknown protocol)?)?(: Disconnected)?)?(, session=<\S+>)?\s*$
             ^%(__prefix_line)s(Info|dovecot: auth\(default\)|auth-worker\(\d+\)): pam\(\S+,<HOST>\): pam_authenticate\(\) failed: (User not known to the underlying authentication module: \d+ Time\(s\)|Authentication failure \(password mismatch\?\))\s*$
-            ^%(__prefix_line)sauth-worker\(\d+\): pam\(\S+,<HOST>\): unknown user\s*$
+            ^%(__prefix_line)s(auth|auth-worker\(\d+\)): (pam|passwd-file)\(\S+,<HOST>\): unknown user\s*$
 
 ignoreregex = 
 

fail2ban/tests/files/logs/dovecot

@@ -37,6 +37,9 @@ Jan 29 05:32:50 mail dovecot: auth-worker(304): pam(username,1.2.3.4): pam_authe
 # failJSON: { "time": "2005-01-29T05:13:40", "match": true , "host": "1.2.3.4" }
 Jan 29 05:13:40 mail dovecot: auth-worker(31326): pam(username,1.2.3.4): unknown user
 
+# failJSON: { "time": "2005-01-29T05:13:50", "match": true , "host": "1.2.3.4" }
+Jan 29 05:13:50 mail dovecot: auth: passwd-file(username,1.2.3.4): unknown user
+
 # failJSON: { "time": "2005-04-19T05:22:20", "match": true , "host": "80.255.3.104" }
 Apr 19 05:22:20 vm5 auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=informix rhost=80.255.3.104