Email sending failed

Contribute Bug

AI-generated summary

Several users are experiencing issues with email sending in their Discourse installations. javenfang encountered the problem after upgrading to the latest version and found an error log stating “end of file reached” with a stack trace pointing to a Ruby net protocol issue. downey has also been experiencing the error, seeing a message about email polling generating an error in the /admin section, although they suspect this may not be related. cmtonkinson has the same error, “end of file reached,” with an identical stack trace. The issue does not appear to be due to an SMTP server error.

1

For installing discourse with official guideline and env, with many days I encountered email failure.

Latest version upgraded, and failure logs now is shown. The commit - FIX: don’t create an EmailLog when we can’t send a digest

Now I can see the following error, and it seems it is not due to smtp server error.

Log error is:

Job exception: end of file reached

The backtrace is:

/usr/local/lib/ruby/2.0.0/net/protocol.rb:153:in `read_nonblock'
/usr/local/lib/ruby/2.0.0/net/protocol.rb:153:in `rbuf_fill'
/usr/local/lib/ruby/2.0.0/net/protocol.rb:134:in `readuntil'
/usr/local/lib/ruby/2.0.0/net/protocol.rb:144:in `readline'
/usr/local/lib/ruby/2.0.0/net/smtp.rb:932:in `recv_response'
/usr/local/lib/ruby/2.0.0/net/smtp.rb:555:in `block in do_start'
/usr/local/lib/ruby/2.0.0/net/smtp.rb:942:in `critical'
/usr/local/lib/ruby/2.0.0/net/smtp.rb:555:in `do_start'
/usr/local/lib/ruby/2.0.0/net/smtp.rb:520:in `start'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/mail-2.6.3/lib/mail/network/delivery_methods/smtp.rb:112:in `deliver!'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/mail-2.6.3/lib/mail/message.rb:2141:in `do_delivery'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/mail-2.6.3/lib/mail/message.rb:236:in `block in deliver'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionmailer-4.2.5.1/lib/action_mailer/base.rb:543:in `block in deliver_mail'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.5.1/lib/active_support/notifications.rb:164:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.5.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/activesupport-4.2.5.1/lib/active_support/notifications.rb:164:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionmailer-4.2.5.1/lib/action_mailer/base.rb:541:in `deliver_mail'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/mail-2.6.3/lib/mail/message.rb:236:in `deliver'
/var/www/discourse/vendor/bundle/ruby/2.0.0/gems/actionmailer-4.2.5.1/lib/action_mailer/message_delivery.rb:85:in `deliver_now'
/var/www/discourse/lib/email/sender.rb:130:in `send'
/var/www/discourse/app/jobs/regular/user_email.rb:41:in `execute'
/var/www/discourse/app/jobs/base.rb:154:in `block (2 levels) in perform'
إعجابَين (2)
2

I have also been getting this error lately … first I see the following in /admin:

Some problems have been found with your installation of Discourse:
Email polling has generated an error in the past 24 hours. Look at the logs for more details.

I actually don’t think the above message is related, but the errors seems to be related to Jobs::UserEmail and Jobs::NotifyMailingListSubscribers.

3

Same error here @downey: end of file reached is what the JSON returns.

Stack trace the same as @javenfang.