diff --git a/src/Connection/ImapConnection.php b/src/Connection/ImapConnection.php
index 82990b8..21e1975 100644
--- a/src/Connection/ImapConnection.php
+++ b/src/Connection/ImapConnection.php
@@ -17,7 +17,6 @@
 use DirectoryTree\ImapEngine\Exceptions\Exception;
 use DirectoryTree\ImapEngine\Exceptions\ImapCommandException;
 use DirectoryTree\ImapEngine\Exceptions\ImapConnectionClosedException;
-use DirectoryTree\ImapEngine\Exceptions\ImapConnectionException;
 use DirectoryTree\ImapEngine\Exceptions\ImapConnectionFailedException;
 use DirectoryTree\ImapEngine\Exceptions\ImapConnectionTimedOutException;
 use DirectoryTree\ImapEngine\Exceptions\ImapResponseException;
@@ -749,7 +748,7 @@ protected function nextReply(): Data|Token|Response|null
             throw match (true) {
                 $meta['timed_out'] ?? false => new ImapConnectionTimedOutException('Stream timed out, no response'),
                 $meta['eof'] ?? false => new ImapConnectionClosedException('Server closed the connection (EOF)'),
-                default => new ImapConnectionException('Unknown stream error. Metadata: '.json_encode($meta)),
+                default => new ImapConnectionFailedException('Unknown stream error. Metadata: '.json_encode($meta)),
             };
         }
 
diff --git a/src/Exceptions/ImapConnectionClosedException.php b/src/Exceptions/ImapConnectionClosedException.php
index 250d6ff..8323ba7 100644
--- a/src/Exceptions/ImapConnectionClosedException.php
+++ b/src/Exceptions/ImapConnectionClosedException.php
@@ -2,4 +2,4 @@
 
 namespace DirectoryTree\ImapEngine\Exceptions;
 
-class ImapConnectionClosedException extends Exception {}
+class ImapConnectionClosedException extends ImapConnectionException {}
diff --git a/src/Exceptions/ImapConnectionException.php b/src/Exceptions/ImapConnectionException.php
index c272f5c..509bbc5 100644
--- a/src/Exceptions/ImapConnectionException.php
+++ b/src/Exceptions/ImapConnectionException.php
@@ -2,4 +2,4 @@
 
 namespace DirectoryTree\ImapEngine\Exceptions;
 
-class ImapConnectionException extends Exception {}
+abstract class ImapConnectionException extends Exception {}
diff --git a/src/Exceptions/ImapConnectionFailedException.php b/src/Exceptions/ImapConnectionFailedException.php
index d4ebc61..5675dea 100644
--- a/src/Exceptions/ImapConnectionFailedException.php
+++ b/src/Exceptions/ImapConnectionFailedException.php
@@ -2,4 +2,4 @@
 
 namespace DirectoryTree\ImapEngine\Exceptions;
 
-class ImapConnectionFailedException extends Exception {}
+class ImapConnectionFailedException extends ImapConnectionException {}
diff --git a/src/Exceptions/ImapConnectionTimedOutException.php b/src/Exceptions/ImapConnectionTimedOutException.php
index 6c4a555..c8098b0 100644
--- a/src/Exceptions/ImapConnectionTimedOutException.php
+++ b/src/Exceptions/ImapConnectionTimedOutException.php
@@ -2,4 +2,4 @@
 
 namespace DirectoryTree\ImapEngine\Exceptions;
 
-class ImapConnectionTimedOutException extends Exception {}
+class ImapConnectionTimedOutException extends ImapConnectionException {}