this is my plugin list:
// List of active plugins (in plugins/ directory)
$rcmail_config['plugins'] = array('jqueryui','compose_addressbook','markasjunk2','copymessage','contextmenu','sticky_notes','message_highlight','zipdownload');
i upgraded all of them. i've also tested by emptying the array and commenting out the whole line, and the login behavior remained unchanged.
- J