- Use default_charset for bodies of messages without charset definition (#1486187)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG RoundCube Webmail
 ===========================
 
+- Use default_charset for bodies of messages without charset definition (#1486187)
 - Password: added cPanel driver
 - Fix return to first page from e-mail screen (#1486105)
 - Fix handling HTML comments in HTML messages (#1486189)

program/include/rcube_imap.php

@@ -1554,7 +1554,7 @@ class rcube_imap
     // convert charset (if text or message part)
     if ($o_part->ctype_primary=='text' || $o_part->ctype_primary=='message') {
       // assume default if no charset specified
-      if (empty($o_part->charset))
+      if (empty($o_part->charset) || strtolower($o_part->charset) == 'us-ascii')
         $o_part->charset = $this->default_charset;
 
       $body = rcube_charset_convert($body, $o_part->charset);