Since updating to 5.3.3.1 I am getting the error below when submitting a form. The form is being entered into the database, as I can view submissions from the reports page.


Fatal error: Uncaught exception 'Exception' with message 'Unable to send mail' in C:\WWWRoot\mmt\concrete\helpers\mail.php:189 Stack trace: #0 C:\WWWRoot\mmt\concrete\blocks\form\controller.php(329): MailHelper->sendMail() #1 C:\WWWRoot\mmt\concrete\models\block.php(262): FormBlockController->action_submit_form() #2 C:\WWWRoot\mmt\concrete\startup\process.php(199): Block->passThruBlock(Array, Array) #3 C:\WWWRoot\mmt\concrete\dispatcher.php(204): require('C:\WWWRoot\mmt\...') #4 C:\WWWRoot\mmt\index.php(2): require('C:\WWWRoot\mmt\...') #5 {main} thrown in C:\WWWRoot\mmt\concrete\helpers\mail.php on line 189

Any help is much appreciated.