Soft fail user emails and log error

Author: silverbackdan

src/Helper/User/UserMailer.php

@@ -96,6 +96,12 @@ private function send(?RawMessage $message): void
         } catch (TransportExceptionInterface $exception) {
             $exception = new MailerTransportException($exception->getMessage());
             $exception->appendDebug($exception->getDebug());
+            if ($logger = $this->container->get('logger')) {
+                $logger->error($exception->getMessage(), [
+                    'exception' => $exception,
+                ]);
+                return;
+            }
             throw $exception;
         }
     }

src/Resources/config/services.php

@@ -1190,6 +1190,7 @@
                     UsernameChangedEmailFactory::class => new Reference(UsernameChangedEmailFactory::class),
                     PasswordChangedEmailFactory::class => new Reference(PasswordChangedEmailFactory::class),
                     VerifyEmailFactory::class => new Reference(VerifyEmailFactory::class),
+                    'logger' => new Reference('logger', ContainerInterface::IGNORE_ON_INVALID_REFERENCE)
                 ]),
                 '', // injected in dependency injection
             ]