Call to undefined method Symfony\Component\Mime\Message::getTo()

[My Dime Is Up]

Affected version

2.3.9

Cross-posting from troubleshooting. We are experiencing the same error while DKIM signing is enabled.

Error: Call to undefined method Symfony\Component\Mime\Message::getTo() src/XF/Mail/Mailer.php:483
Generated by: XXXXXX Feb 22, 2026 at 1:17 AM
Stack trace
#0 src/XF/Mail/Mail.php(693): XF\Mail\Mailer->send(Object(Symfony\Component\Mime\Message), Object(Symfony\Component\Mailer\Transport\SendmailTransport))
#1 src/XF/Admin/Controller/ToolsController.php(309): XF\Mail\Mail->send(Object(Symfony\Component\Mailer\Transport\SendmailTransport), false)
#2 src/XF/Mvc/Dispatcher.php(362): XF\Admin\Controller\ToolsController->actionTestEmail(Object(XF\Mvc\ParameterBag))
#3 src/XF/Mvc/Dispatcher.php(264): XF\Mvc\Dispatcher->dispatchClass('XF:Tools', 'TestEmail', Object(XF\Mvc\RouteMatch), Object(XF\Admin\Controller\ToolsController), NULL)
#4 src/XF/Mvc/Dispatcher.php(121): XF\Mvc\Dispatcher->dispatchFromMatch(Object(XF\Mvc\RouteMatch), Object(XF\Admin\Controller\ToolsController), NULL)
#5 src/XF/Mvc/Dispatcher.php(63): XF\Mvc\Dispatcher->dispatchLoop(Object(XF\Mvc\RouteMatch))
#6 src/XF/App.php(2824): XF\Mvc\Dispatcher->run()
#7 src/XF.php(814): XF\App->run()
#8 admin.php(15): XF::runApp('XF\\Admin\\App')
#9 {main}

 

[bzcomputers]

Getting similar a few times a day on new user registrations...

Error: Call to undefined method Symfony\Component\Mime\Message::getTo() src/XF/Mail/Mailer.php:483
Generated by: Unknown account Feb 26, 2026 at 8:23 AM
Stack trace
#0 src/addons/DigitalPoint/Analytics/XF/Mail/Mailer.php(113): XF\Mail\Mailer->send(Object(Symfony\Component\Mime\Message), Object(Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport))
#1 src/XF/Mail/Mail.php(693): DigitalPoint\Analytics\XF\Mail\Mailer->send(Object(Symfony\Component\Mime\Email), NULL)
#2 src/XF/Service/User/AbstractConfirmationService.php(88): XF\Mail\Mail->send()
#3 src/XF/Service/User/AbstractConfirmationService.php(66): XF\Service\User\AbstractConfirmationService->sendConfirmationEmail()
#4 src/XF/Service/User/RegistrationService.php(416): XF\Service\User\AbstractConfirmationService->triggerConfirmation()
#5 src/XF/Service/User/RegistrationService.php(343): XF\Service\User\RegistrationService->sendRegistrationContact()
#6 src/XF/Service/ValidateAndSavableTrait.php(42): XF\Service\User\RegistrationService->_save()
#7 src/XF/Pub/Controller/RegisterController.php(460): XF\Service\User\RegistrationService->save()
#8 src/XF/Mvc/Dispatcher.php(362): XF\Pub\Controller\RegisterController->actionRegister(Object(XF\Mvc\ParameterBag))
#9 src/XF/Mvc/Dispatcher.php(264): XF\Mvc\Dispatcher->dispatchClass('XF:Register', 'Register', Object(XF\Mvc\RouteMatch), Object(DigitalPoint\Analytics\XF\Pub\Controller\Register), NULL)
#10 src/XF/Mvc/Dispatcher.php(121): XF\Mvc\Dispatcher->dispatchFromMatch(Object(XF\Mvc\RouteMatch), Object(DigitalPoint\Analytics\XF\Pub\Controller\Register), NULL)
#11 src/XF/Mvc/Dispatcher.php(63): XF\Mvc\Dispatcher->dispatchLoop(Object(XF\Mvc\RouteMatch))
#12 src/XF/App.php(2824): XF\Mvc\Dispatcher->run()
#13 src/XF.php(814): XF\App->run()
#14 index.php(23): XF::runApp('XF\\Pub\\App')
#15 {main}