Solved: unable to send mail after upgrading to Roundcube 1.3.4
Apparently the smtp user and password were missing from the config.inc.php file in Roundcube 1.3.4, resulting in a [code]Relay access denied[/code] when trying to send mail from Roundcube. Adding [code] $config[‘smtp_user’] = ‘%u’; $config[‘smtp_pass’] = ‘%p’; [/code] to config/config.inc.php solved the problem.