Update to 1.9.3.6 update to version 1.9.3.6 no more emails will be sent.

[swissbull]

Hello,

After update to version 1.9.3.6 update to version 1.9.3.6 no more emails will be sent..

2017-11-08T14:38:01+00:00 ERR (3):
exception 'Exception' with message 'This letter cannot be sent.' in /home/www/XXXX/htdocs/app/code/core/Mage/Core/Model/Email/Template.php:374
Stack trace:
#0 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Model/Email/Template.php(509): Mage_Core_Model_Email_Template->send(Array, Array, Array)
#1 /home/www/XXXX/htdocs/app/code/local/Customweb/Isr/Model/Core/Email/Template/Mailer.php(46): Mage_Core_Model_Email_Template->sendTransactional('14', 'sales', Array, Array, Array, '1')
#2 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Order/Invoice.php(846): Customweb_Isr_Model_Core_Email_Template_Mailer->send()
#3 /home/www/XXXX/htdocs/app/code/local/Customweb/Isr/Model/IsrInvoice.php(69): Mage_Sales_Model_Order_Invoice->sendEmail()
#4 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Order/Payment.php(1089): Customweb_Isr_Model_IsrInvoice->authorize(Object(Mage_Sales_Model_Order_Payment), 11.9)
#5 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Order/Payment.php(342): Mage_Sales_Model_Order_Payment->_authorize(true, 11.9)
#6 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Order.php(896): Mage_Sales_Model_Order_Payment->place()
#7 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Order.php(1114): Mage_Sales_Model_Order->_placePayment()
#8 [internal function]: Mage_Sales_Model_Order->place()
#9 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Model/Resource/Transaction.php(105): call_user_func(Array)
#10 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Model/Resource/Transaction.php(159): Mage_Core_Model_Resource_Transaction->_runCallbacks()
#11 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Service/Quote.php(189): Mage_Core_Model_Resource_Transaction->save()
#12 /home/www/XXXX/htdocs/app/code/core/Mage/Sales/Model/Service/Quote.php(249): Mage_Sales_Model_Service_Quote->submitOrder()
#13 /home/www/XXXX/htdocs/app/code/core/Mage/Checkout/Model/Type/Onepage.php(815): Mage_Sales_Model_Service_Quote->submitAll()
#14 /home/www/XXXX/htdocs/app/code/core/Mage/Checkout/controllers/OnepageController.php(599): Mage_Checkout_Model_Type_Onepage->saveOrder()
#15 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Checkout_OnepageController->saveOrderAction()
#16 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('saveOrder')
#17 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#18 /home/www/XXXX/htdocs/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#19 /home/www/XXXX/htdocs/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#20 /home/www/XXXX/htdocs/index.php(83): Mage::run('', 'store')
#21 {main}

[Damian Culotta · Accepted solution]

Hi @swissbull,

I'm not sure from one version you made the upgrade but according with the error message I would check 2 details:

1. Check if System > Configuration > System > Mail Sending Settings > Disable Email Communications is set as "No"
2. Validate your custom email template and be sure the email has Subject.

[swissbull]

Hi Damian,

Works great, thanks for your help