Job exception: 451 Error while writing spool file -- do I need to worry?

Support
1

In the admin interface I got pointed to mail processing errors, which are in fact two entries of a “Job exception: 451 Error while writing spool file”.

Do you have some more infos about this for me? With ~4000 mails sent yesterday, these 2 errors seem to be not that serious. Nevertheless, I ask myself for possible reasons. Out of disk space? At least locally that is unlikely. What else?

Thanks,
Dirk

This is the log entry:

Message

Job exception: 451 Error while writing spool file

Backtrace

/usr/local/lib/ruby/2.3.0/net/smtp.rb:965:in `check_response'
/usr/local/lib/ruby/2.3.0/net/smtp.rb:919:in `data'
/usr/local/lib/ruby/2.3.0/net/smtp.rb:664:in `block in send_message'
/usr/local/lib/ruby/2.3.0/net/smtp.rb:859:in `rcptto_list'
/usr/local/lib/ruby/2.3.0/net/smtp.rb:664:in `send_message'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/mail-2.6.4/lib/mail/network/delivery_methods/smtp.rb:114:in `block in deliver!'
/usr/local/lib/ruby/2.3.0/net/smtp.rb:522:in `start'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/mail-2.6.4/lib/mail/network/delivery_methods/smtp.rb:113:in `deliver!'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/mail-2.6.4/lib/mail/message.rb:2149:in `do_delivery'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/mail-2.6.4/lib/mail/message.rb:237:in `block in deliver'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/actionmailer-4.2.7.1/lib/action_mailer/base.rb:543:in `block in deliver_mail'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/notifications.rb:164:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/notifications.rb:164:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/actionmailer-4.2.7.1/lib/action_mailer/base.rb:541:in `deliver_mail'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/mail-2.6.4/lib/mail/message.rb:237:in `deliver'
/var/www/discourse/vendor/bundle/ruby/2.3.0/gems/actionmailer-4.2.7.1/lib/action_mailer/message_delivery.rb:85:in `deliver_now'
/var/www/discourse/lib/email/sender.rb:155: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'

Env

hostname	forum-app
process_id	187
application_version	2a9331d061423f2b04d63ad7407f90fa6fd104cd
current_db	default
current_hostname	forum.fremo-net.eu
job	Jobs::UserEmail
problem_db	default
opts	
type	user_posted
user_id	79
notification_id	52774
notification_type	posted
post_id	3322
current_site_id	default
notification_data_hash	
topic_title	Reisende in "Fensterwagen" oder nicht?
original_post_id	3322
original_post_type	1
original_username	anonymized
display_username	anonymized
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2

That error is being reported by the app as coming from your mail server. Whatever you’re relaying mail to had a temporary problem, which the e-mail sending worker should have detected and retried the e-mail sending later.

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