He encontrado el mismo problema descrito aquí. Esencialmente, un solo correo electrónico entrante está provocando que toda la cola falle, impidiendo que se procesen los correos electrónicos.
Desde los registros:
No se puede procesar el correo electrónico: Email::Receiver::EmptyEmailError
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:130:in `block in warn'[ ](https://github.com/rails/rails/tree/v7.2.2.1/activesupport/lib/active_support/broadcast_logger.rb#L130)
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `block in dispatch'[ ](https://github.com/rails/rails/tree/v7.2.2.1/activesupport/lib/active_support/broadcast_logger.rb#L231)
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `each'[ ](https://github.com/rails/rails/tree/v7.2.2.1/activesupport/lib/active_support/broadcast_logger.rb#L231)
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `dispatch'[ ](https://github.com/rails/rails/tree/v7.2.2.1/activesupport/lib/active_support/broadcast_logger.rb#L231)
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:130:in `warn'[ ](https://github.com/rails/rails/tree/v7.2.2.1/activesupport/lib/active_support/broadcast_logger.rb#L130)
/var/www/discourse/lib/email/processor.rb:183:in `log_email_process_failure'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/lib/email/processor.rb#L183)
/var/www/discourse/lib/email/processor.rb:29:in `rescue in process!'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/lib/email/processor.rb#L29)
/var/www/discourse/lib/email/processor.rb:16:in `process!'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/lib/email/processor.rb#L16)
/var/www/discourse/lib/email/processor.rb:13:in `process!'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/lib/email/processor.rb#L13)
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:29:in `process_popmail'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/scheduled/poll_mailbox.rb#L29)
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:49:in `block (2 levels) in poll_pop3'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/scheduled/poll_mailbox.rb#L49)
net-pop-0.1.2/lib/net/pop.rb:669:in `each'[ ](https://github.com/ruby/net-pop/blob/master/lib/net/pop.rb#L669)
net-pop-0.1.2/lib/net/pop.rb:669:in `each_mail'[ ](https://github.com/ruby/net-pop/blob/master/lib/net/pop.rb#L669)
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:46:in `block in poll_pop3'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/scheduled/poll_mailbox.rb#L46)
net-pop-0.1.2/lib/net/pop.rb:531:in `start'[ ](https://github.com/ruby/net-pop/blob/master/lib/net/pop.rb#L531)
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:45:in `poll_pop3'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/scheduled/poll_mailbox.rb#L45)
/var/www/discourse/app/jobs/scheduled/poll_mailbox.rb:14:in `execute'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/scheduled/poll_mailbox.rb#L14)
/var/www/discourse/app/jobs/base.rb:316:in `block (2 levels) in perform'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/base.rb#L316)
rails_multisite-6.1.0/lib/rails_multisite/connection_management/null_instance.rb:49:in `with_connection'
rails_multisite-6.1.0/lib/rails_multisite/connection_management.rb:21:in `with_connection'
/var/www/discourse/app/jobs/base.rb:303:in `block in perform'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/base.rb#L303)
/var/www/discourse/app/jobs/base.rb:299:in `each'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/base.rb#L299)
/var/www/discourse/app/jobs/base.rb:299:in `perform'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/base.rb#L299)
/var/www/discourse/app/jobs/base.rb:379:in `perform'[ ](https://github.com/discourse/discourse/blob/486ff2a5643f7a5ac66ccef11a97d6c2a282c9ee/app/jobs/base.rb#L379)
mini_scheduler-0.18.0/lib/mini_scheduler/manager.rb:137:in `process_queue'[ ](https://github.com/discourse/mini_scheduler/blob/master/lib/mini_scheduler/manager.rb#L137)
mini_scheduler-0.18.0/lib/mini_scheduler/manager.rb:77:in `worker_loop'[ ](https://github.com/discourse/mini_scheduler/blob/master/lib/mini_scheduler/manager.rb#L77)
mini_scheduler-0.18.0/lib/mini_scheduler/manager.rb:63:in `block (2 levels) in ensure_worker_threads'[ ](https://github.com/discourse/mini_scheduler/blob/master/lib/mini_scheduler/manager.rb#L63)
Parece ser un problema recurrente y sería genial que se solucionara. Como mínimo, el proceso podría optimizarse para manejar mejor estos casos. Por ejemplo, aislando el correo electrónico problemático para que los demás puedan seguir procesándose. También podría ser útil incluir una advertencia en el Panel de Administración, similar a la que se muestra para los problemas de correo electrónico saliente.
Puedo proporcionar el cuerpo del correo electrónico por mensaje privado, solo házmelo saber. Gracias.
