Cant send emails with discourse

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AI-generated summary

The original poster, hosna, is experiencing issues with sending emails through their Discourse forum, encountering an error in the logs. Stephen inquired about the mail provider used and if the failures coincided with a rebuild or upgrade. hosna later revealed that the issue was due to a network problem.

1

Suddenly my forum doesn’t send any email. I’m seeing the following error in logs:

/usr/local/lib/ruby/2.5.0/net/smtp.rb:539:in `initialize'
/usr/local/lib/ruby/2.5.0/net/smtp.rb:539:in `open'
/usr/local/lib/ruby/2.5.0/net/smtp.rb:539:in `tcp_socket'
/usr/local/lib/ruby/2.5.0/net/smtp.rb:549:in `block in do_start'
/usr/local/lib/ruby/2.5.0/timeout.rb:103:in `timeout'
/usr/local/lib/ruby/2.5.0/net/smtp.rb:548:in `do_start'
/usr/local/lib/ruby/2.5.0/net/smtp.rb:518:in `start'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/mail-2.7.1/lib/mail/network/delivery_methods/smtp.rb:109:in `start_smtp_session'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/mail-2.7.1/lib/mail/network/delivery_methods/smtp.rb:100:in `deliver!'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/mail-2.7.1/lib/mail/message.rb:2159:in `do_delivery'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/mail-2.7.1/lib/mail/message.rb:260:in `block in deliver'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionmailer-5.2.2.1/lib/action_mailer/base.rb:560:in `block in deliver_mail'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2.1/lib/active_support/notifications.rb:168:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2.1/lib/active_support/notifications/instrumenter.rb:23:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/activesupport-5.2.2.1/lib/active_support/notifications.rb:168:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionmailer-5.2.2.1/lib/action_mailer/base.rb:558:in `deliver_mail'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/mail-2.7.1/lib/mail/message.rb:260:in `deliver'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionmailer-5.2.2.1/lib/action_mailer/message_delivery.rb:114:in `block in deliver_now'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionmailer-5.2.2.1/lib/action_mailer/rescuable.rb:17:in `handle_exceptions'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/actionmailer-5.2.2.1/lib/action_mailer/message_delivery.rb:113:in `deliver_now'
/var/www/discourse/lib/email/sender.rb:209:in `send'
/var/www/discourse/app/jobs/regular/user_email.rb:57:in `execute'
/var/www/discourse/app/jobs/base.rb:230:in `block (2 levels) in perform'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/rails_multisite-2.0.6/lib/rails_multisite/connection_management.rb:63:in `with_connection'
/var/www/discourse/app/jobs/base.rb:219:in `block in perform'
/var/www/discourse/app/jobs/base.rb:215:in `each'
/var/www/discourse/app/jobs/base.rb:215:in `perform'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:185:in `execute_job'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:167:in `block (2 levels) in process'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/middleware/chain.rb:128:in `block in invoke'
/var/www/discourse/lib/sidekiq/pausable.rb:136:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/middleware/chain.rb:133:in `invoke'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:166:in `block in process'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:137:in `block (6 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/job_retry.rb:108:in `local'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:136:in `block (5 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq.rb:37:in `block in <module:Sidekiq>'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:132:in `block (4 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:243:in `stats'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:127:in `block (3 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/job_logger.rb:8:in `call'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:126:in `block (2 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/job_retry.rb:73:in `global'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:125:in `block in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/logging.rb:48:in `with_context'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/logging.rb:42:in `with_job_hash_context'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:124:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:165:in `process'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:83:in `process_one'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/processor.rb:71:in `run'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/util.rb:16:in `watchdog'
/var/www/discourse/vendor/bundle/ruby/2.5.0/gems/sidekiq-5.2.5/lib/sidekiq/util.rb:25:in `block in safe_thread'
2

Which mail provider are you using?

Do the failures coincide with a rebuild or upgrade?

3

It was a network problem