diff --git a/lib/nntp/tiny/session.py b/lib/nntp/tiny/session.py
index ee64924..4c9b199 100644
--- a/lib/nntp/tiny/session.py
+++ b/lib/nntp/tiny/session.py
@@ -15,11 +15,6 @@ from nntp.tiny.response  import Response, ResponseCode
 from nntp.tiny.newsgroup import Newsgroup
 from nntp.tiny.message   import Message, MessageRange, MessagePart
 
-class SessionState(enum.Flag):
-    ACTIVE    = 1
-    AUTH_OK   = enum.auto()
-    AUTH_POST = enum.auto()
-
 class SessionMode(enum.Enum):
     READER = 1
 
@@ -42,8 +37,8 @@ class Session():
         self.sock: socket.socket  = sock
         self.buf: LineBuffer      = LineBuffer()
         self.output: OutputBuffer = OutputBuffer(sock)
-        self.state: SessionState  = SessionState.ACTIVE
         self.mode: SessionMode    = SessionMode.READER
+        self.active: bool         = True
 
         self.newsgroup:  Optional[Newsgroup] = None
         self.article_id: Optional[int]       = None
@@ -68,10 +63,6 @@ class Session():
     def _cmd_capabilities(self, *args):
         self.respond(ResponseCode.NNTP_CAPABILITIES_FOLLOW)
 
-        if self.state & SessionState.AUTH_POST:
-            self.print('POST')
-
-        if self.state & SessionState.AUTH_OK:
             self.print('AUTHUSER INFO')
 
         for item in self.NNTP_CAPABILITIES:
@@ -657,7 +648,7 @@ class Session():
                             timestamp.strftime("%Y%m%d%H%M%S"))
 
     def _cmd_quit(self):
-        self.state &= ~SessionState.ACTIVE
+        self.active = False
 
         return self.respond(ResponseCode.NNTP_CONNECTION_CLOSING)
 
@@ -691,7 +682,7 @@ class Session():
         line = self.readline()
 
         if line == '':
-            self.state &= ~SessionState.ACTIVE
+            self.active = False
             return
 
         tokens = self.RE_SPLIT.split(line.rstrip())
@@ -715,7 +706,7 @@ class Session():
         self.greet()
 
         try:
-            while self.state & SessionState.ACTIVE:
+            while self.active:
                 self.handle_command()
                 self.flush()