Ciao! Scrivo qui perchè sulla community europea non ho capito granchè nonostante gli sforzi.
Premetto che non sono un developer, sono un normalissimo utente "avanzato". Sono un novizio di flarum questo si.-
Quando un utente prova a registrarsi al mio forum, mi dice "Ops! Qualcosa è andato storto."
Leggendo il debug sembra che il problema sia il servizio mail, che non riesce ad inoltrare la mail di registrazione.-
Qualcuno mi ha passato un plugin per bypassare il problema della mail di conferma, ma io vorrei un servizio funzionale (mail inclusa), quindi chiedo se qualcuno mi riesce ad orientare sul da farsi.
DEBUG
POST http://cantierecreativo.click/register

Swift_TransportException: Expected response code 220 but got an empty response in /var/www/html/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:447
Stack trace:
#0 /var/www/html/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(360): Swift_Transport_AbstractSmtpTransport->assertResponseCode()
#1 /var/www/html/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(147): Swift_Transport_AbstractSmtpTransport->readGreeting()
#2 /var/www/html/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/SendmailTransport.php(50): Swift_Transport_AbstractSmtpTransport->start()
#3 /var/www/html/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php(65): Swift_Transport_SendmailTransport->start()
#4 /var/www/html/vendor/illuminate/mail/Mailer.php(521): Swift_Mailer->send()
#5 /var/www/html/vendor/illuminate/mail/Mailer.php(288): Illuminate\Mail\Mailer->sendSwiftMessage()
#6 /var/www/html/vendor/illuminate/mail/Mailer.php(212): Illuminate\Mail\Mailer->send()
#7 /var/www/html/vendor/flarum/core/src/Mail/Job/SendRawEmailJob.php(33): Illuminate\Mail\Mailer->raw()
#8 /var/www/html/vendor/illuminate/container/BoundMethod.php(36): Flarum\Mail\Job\SendRawEmailJob->handle()
#9 /var/www/html/vendor/illuminate/container/Util.php(40): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#10 /var/www/html/vendor/illuminate/container/BoundMethod.php(93): Illuminate\Container\Util::unwrapIfClosure()
#11 /var/www/html/vendor/illuminate/container/BoundMethod.php(35): Illuminate\Container\BoundMethod::callBoundMethod()
#12 /var/www/html/vendor/illuminate/container/Container.php(653): Illuminate\Container\BoundMethod::call()
#13 /var/www/html/vendor/illuminate/bus/Dispatcher.php(128): Illuminate\Container\Container->call()
#14 /var/www/html/vendor/illuminate/pipeline/Pipeline.php(128): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}()
#15 /var/www/html/vendor/illuminate/pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#16 /var/www/html/vendor/illuminate/bus/Dispatcher.php(132): Illuminate\Pipeline\Pipeline->then()
#17 /var/www/html/vendor/illuminate/queue/CallQueuedHandler.php(119): Illuminate\Bus\Dispatcher->dispatchNow()
#18 /var/www/html/vendor/illuminate/pipeline/Pipeline.php(128): Illuminate\Queue\CallQueuedHandler->Illuminate\Queue\{closure}()
#19 /var/www/html/vendor/illuminate/pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#20 /var/www/html/vendor/illuminate/queue/CallQueuedHandler.php(118): Illuminate\Pipeline\Pipeline->then()
#21 /var/www/html/vendor/illuminate/queue/CallQueuedHandler.php(70): Illuminate\Queue\CallQueuedHandler->dispatchThroughMiddleware()
#22 /var/www/html/vendor/illuminate/queue/Jobs/Job.php(98): Illuminate\Queue\CallQueuedHandler->call()
#23 /var/www/html/vendor/illuminate/queue/SyncQueue.php(43): Illuminate\Queue\Jobs\Job->fire()
#24 /var/www/html/vendor/flarum/core/src/User/AccountActivationMailerTrait.php(54): Illuminate\Queue\SyncQueue->push()
#25 /var/www/html/vendor/flarum/core/src/User/AccountActivationMailer.php(67): Flarum\User\AccountActivationMailer->sendConfirmationEmail()
#26 /var/www/html/vendor/illuminate/events/Dispatcher.php(424): Flarum\User\AccountActivationMailer->handle()
#27 /var/www/html/vendor/illuminate/events/Dispatcher.php(249): Illuminate\Events\Dispatcher->Illuminate\Events\{closure}()
#28 /var/www/html/vendor/flarum/core/src/Foundation/DispatchEventsTrait.php(33): Illuminate\Events\Dispatcher->dispatch()
#29 /var/www/html/vendor/flarum/core/src/User/Command/RegisterUserHandler.php(120): Flarum\User\Command\RegisterUserHandler->dispatchEventsFor()
#30 /var/www/html/vendor/illuminate/bus/Dispatcher.php(122): Flarum\User\Command\RegisterUserHandler->handle()
#31 /var/www/html/vendor/illuminate/pipeline/Pipeline.php(128): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}()
#32 /var/www/html/vendor/illuminate/pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#33 /var/www/html/vendor/illuminate/bus/Dispatcher.php(132): Illuminate\Pipeline\Pipeline->then()
#34 /var/www/html/vendor/illuminate/bus/Dispatcher.php(78): Illuminate\Bus\Dispatcher->dispatchNow()
#35 /var/www/html/vendor/flarum/core/src/Api/Controller/CreateUserController.php(45): Illuminate\Bus\Dispatcher->dispatch()
#36 /var/www/html/vendor/flarum/core/src/Api/Controller/AbstractSerializeController.php(116): Flarum\Api\Controller\CreateUserController->data()
#37 /var/www/html/vendor/flarum/core/src/Api/Controller/AbstractCreateController.php(22): Flarum\Api\Controller\AbstractSerializeController->handle()
#38 /var/www/html/vendor/flarum/core/src/Http/RouteHandlerFactory.php(41): Flarum\Api\Controller\AbstractCreateController->handle()
#39 /var/www/html/vendor/flarum/core/src/Http/Middleware/ExecuteRoute.php(27): Flarum\Http\RouteHandlerFactory->Flarum\Http\{closure}()
#40 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ExecuteRoute->process()
#41 /var/www/html/vendor/flarum/core/src/Api/Middleware/ThrottleApi.php(33): Laminas\Stratigility\Next->handle()
#42 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Api\Middleware\ThrottleApi->process()
#43 /var/www/html/vendor/flarum/core/src/Http/Middleware/ResolveRoute.php(69): Laminas\Stratigility\Next->handle()
#44 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ResolveRoute->process()
#45 /var/www/html/vendor/flarum/core/src/Http/Middleware/SetLocale.php(51): Laminas\Stratigility\Next->handle()
#46 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\SetLocale->process()
#47 /var/www/html/vendor/flarum/core/src/Http/Middleware/HandleErrors.php(57): Laminas\Stratigility\Next->handle()
#48 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\HandleErrors->process()
#49 /var/www/html/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(77): Laminas\Stratigility\Next->handle()
#50 /var/www/html/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(66): Laminas\Stratigility\MiddlewarePipe->process()
#51 /var/www/html/vendor/flarum/core/src/Api/Client.php(141): Laminas\Stratigility\MiddlewarePipe->handle()
#52 /var/www/html/vendor/flarum/core/src/Api/Client.php(96): Flarum\Api\Client->send()
#53 /var/www/html/vendor/flarum/core/src/Forum/Controller/RegisterController.php(56): Flarum\Api\Client->post()
#54 /var/www/html/vendor/flarum/core/src/Http/RouteHandlerFactory.php(41): Flarum\Forum\Controller\RegisterController->handle()
#55 /var/www/html/vendor/flarum/core/src/Http/Middleware/ExecuteRoute.php(27): Flarum\Http\RouteHandlerFactory->Flarum\Http\{closure}()
#56 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ExecuteRoute->process()
#57 /var/www/html/vendor/flarum/core/src/Http/Middleware/ContentTypeOptionsHeader.php(21): Laminas\Stratigility\Next->handle()
#58 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ContentTypeOptionsHeader->process()
#59 /var/www/html/vendor/flarum/core/src/Http/Middleware/ReferrerPolicyHeader.php(30): Laminas\Stratigility\Next->handle()
#60 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ReferrerPolicyHeader->process()
#61 /var/www/html/vendor/flarum/core/src/Http/Middleware/FlarumPromotionHeader.php(30): Laminas\Stratigility\Next->handle()
#62 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\FlarumPromotionHeader->process()
#63 /var/www/html/vendor/flarum/core/src/Http/Middleware/ShareErrorsFromSession.php(57): Laminas\Stratigility\Next->handle()
#64 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ShareErrorsFromSession->process()
#65 /var/www/html/vendor/flarum/core/src/Http/Middleware/CheckCsrfToken.php(44): Laminas\Stratigility\Next->handle()
#66 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\CheckCsrfToken->process()
#67 /var/www/html/vendor/flarum/core/src/Http/Middleware/ResolveRoute.php(69): Laminas\Stratigility\Next->handle()
#68 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ResolveRoute->process()
#69 /var/www/html/vendor/flarum/core/src/Http/Middleware/SetLocale.php(51): Laminas\Stratigility\Next->handle()
#70 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\SetLocale->process()
#71 /var/www/html/vendor/flarum/core/src/Http/Middleware/AuthenticateWithSession.php(31): Laminas\Stratigility\Next->handle()
#72 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\AuthenticateWithSession->process()
#73 /var/www/html/vendor/flarum/core/src/Http/Middleware/RememberFromCookie.php(52): Laminas\Stratigility\Next->handle()
#74 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\RememberFromCookie->process()
#75 /var/www/html/vendor/flarum/core/src/Http/Middleware/StartSession.php(61): Laminas\Stratigility\Next->handle()
#76 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\StartSession->process()
#77 /var/www/html/vendor/flarum/core/src/Http/Middleware/CollectGarbage.php(46): Laminas\Stratigility\Next->handle()
#78 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\CollectGarbage->process()
#79 /var/www/html/vendor/flarum/core/src/Http/Middleware/ParseJsonBody.php(28): Laminas\Stratigility\Next->handle()
#80 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ParseJsonBody->process()
#81 /var/www/html/vendor/flarum/core/src/Http/Middleware/HandleErrors.php(57): Laminas\Stratigility\Next->handle()
#82 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\HandleErrors->process()
#83 /var/www/html/vendor/flarum/core/src/Http/Middleware/InjectActorReference.php(25): Laminas\Stratigility\Next->handle()
#84 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\InjectActorReference->process()
#85 /var/www/html/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(77): Laminas\Stratigility\Next->handle()
#86 /var/www/html/vendor/middlewares/request-handler/src/RequestHandler.php(84): Laminas\Stratigility\MiddlewarePipe->process()
#87 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Middlewares\RequestHandler->process()
#88 /var/www/html/vendor/middlewares/base-path-router/src/BasePathRouter.php(99): Laminas\Stratigility\Next->handle()
#89 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Middlewares\BasePathRouter->process()
#90 /var/www/html/vendor/laminas/laminas-stratigility/src/Middleware/OriginalMessages.php(36): Laminas\Stratigility\Next->handle()
#91 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Laminas\Stratigility\Middleware\OriginalMessages->process()
#92 /var/www/html/vendor/middlewares/base-path/src/BasePath.php(73): Laminas\Stratigility\Next->handle()
#93 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Middlewares\BasePath->process()
#94 /var/www/html/vendor/flarum/core/src/Http/Middleware/ProcessIp.php(24): Laminas\Stratigility\Next->handle()
#95 /var/www/html/vendor/laminas/laminas-stratigility/src/Next.php(52): Flarum\Http\Middleware\ProcessIp->process()
#96 /var/www/html/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(77): Laminas\Stratigility\Next->handle()
#97 /var/www/html/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(66): Laminas\Stratigility\MiddlewarePipe->process()
#98 /var/www/html/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(73): Laminas\Stratigility\MiddlewarePipe->handle()
#99 /var/www/html/vendor/flarum/core/src/Http/Server.php(45): Laminas\HttpHandlerRunner\RequestHandlerRunner->run()
#100 /var/www/html/public/index.php(26): Flarum\Http\Server->listen()
#101 {main}
Grazie a tutti 😊