diff --git a/CHANGELOG b/CHANGELOG
index 20508b38630..bb6e1782d63 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,7 @@ CHANGELOG Roundcube Webmail
 ===========================
 
 - Fix PHP warnings on dummy QUOTA responses in Courier-IMAP 4.17.1 (#6374)
+- Fix so fallback from BINARY to BODY FETCH is used also on [PARSE] errors in dovecot 2.3 (#6383)
 
 RELEASE 1.3.7
 -------------
diff --git a/program/lib/Roundcube/rcube_imap_generic.php b/program/lib/Roundcube/rcube_imap_generic.php
index 7fce2d02c85..428f4f20665 100644
--- a/program/lib/Roundcube/rcube_imap_generic.php
+++ b/program/lib/Roundcube/rcube_imap_generic.php
@@ -2817,7 +2817,7 @@ public function handlePartBody($mailbox, $id, $is_uid=false, $part='', $encoding
             }
 
             // handle UNKNOWN-CTE response - RFC 3516, try again with standard BODY request
-            if ($binary && !$found && preg_match('/^' . $key . ' NO \[UNKNOWN-CTE\]/i', $line)) {
+            if ($binary && !$found && preg_match('/^' . $key . ' NO \[(UNKNOWN-CTE|PARSE)\]/i', $line)) {
                 $binary = $initiated = false;
                 continue;
             }