تم رفض بريدين إلكترونيين من قبل 2026.4.0-latest ( 5f0d95e1f1 )

Ethsim2 · 7 أبريل 2026، 8:37م

مرحبًا، أواجه فشلًا متقطعًا في معالجة البريد الوارد على موقع مستضاف ذاتيًا باستخدام mail-receiver.

ما الذي حدث

تم استلام بريد إلكتروني وارد منفصلين:

تم تسليمهما إلى عنوان Discourse الصحيح
يظهران في /admin/email/received
يظهران أيضًا في /admin/email/rejected
يعرضان نص الرفض العام: “حدث خطأ غير معروف أثناء معالجة بريدك الإلكتروني ولم يتم نشره.”

في الوقت نفسه تقريبًا، أظهرت السجلات ActiveRecord::Deadlocked.

السبب الذي يجعلني أعتقد أن هذا قد يكون خطأ

قارنت بين البريد المرفوض وبريد إلكتروني ناجح لاحق بنفس الصيغة تقريبًا:

نفس نمط المرسل
نفس المسار عبر Microsoft / Power Automate
نفس شكل حقل To: الظاهر
نفس مستلم SMTP المغلف الموجه إلى عنوان Discourse

لذلك لا يبدو أن هذا مجرد مشكلة تكوين مع mail-receiver.

الأدلة

بالنسبة لكلتا الرسالتين المرفوضتين:

كانا تسليمين منفصلين بـ Message-ID مختلفين
كان لهما معرفات طابور Postfix مختلفة
تم تسليمهما كلاهما for <ppyem3.accomodation@discourse.domain.com>

لاحظت أيضًا ActiveRecord::Deadlocked في السجلات خلال نفس الفترة.

سياق الاستضافة

استضافة ذاتية
استخدام mail-receiver
خادم VPS صغير من IONOS
عامل ويب واحد مُعد

أدرك أن عامل الويب الواحد قد يكون مجرد سياق خلفي وليس السبب، حيث يبدو أن المشكلة تتعلق بمعالجة البريد الوارد/الخلفي وليس معالجة طلبات الويب.

إذا كان ذلك مفيدًا، يمكنني توفير:

رؤوس مرسلة مغطاة للرسالتين المرفوضتين
رؤوس مرسلة مغطاة لبريد إلكتروني ناجح قابل للمقارنة
سجل خطأ التعارض (deadlock log entry)

Ethsim2 · 7 أبريل 2026، 9:12م

browsing the /logs endpoint, i see the two errors

env

hostname	ubuntu-app
process_id	2297
application_version	5f0d95e1f11a9cb5acbe8c7a61142400fc506f06
job	Jobs::ProcessEmail
db	default
time	7:48 pm

backtrace

activesupport-8.0.5/lib/active_support/broadcast_logger.rb:218:in 'block in ActiveSupport::BroadcastLogger#dispatch' 
activesupport-8.0.5/lib/active_support/broadcast_logger.rb:217:in 'Array#map' 
activesupport-8.0.5/lib/active_support/broadcast_logger.rb:217:in 'ActiveSupport::BroadcastLogger#dispatch' 
activesupport-8.0.5/lib/active_support/broadcast_logger.rb:129:in 'ActiveSupport::BroadcastLogger#error' 
/var/www/discourse/lib/email/processor.rb:126:in 'Email::Processor#handle_failure' 
/var/www/discourse/lib/email/processor.rb:31:in 'Email::Processor#process!' 
/var/www/discourse/lib/email/processor.rb:13:in 'Email::Processor.process!' 
/var/www/discourse/app/jobs/regular/process_email.rb:8:in 'Jobs::ProcessEmail#execute' 
/var/www/discourse/app/jobs/base.rb:318:in 'block (2 levels) in Jobs::Base#perform' 
rails_multisite-7.0.0/lib/rails_multisite/connection_management/null_instance.rb:49:in 'RailsMultisite::ConnectionManagement::NullInstance#with_connection'
rails_multisite-7.0.0/lib/rails_multisite/connection_management.rb:17:in 'RailsMultisite::ConnectionManagement.with_connection'
/var/www/discourse/app/jobs/base.rb:305:in 'block in Jobs::Base#perform' 
/var/www/discourse/app/jobs/base.rb:301:in 'Array#each' 
/var/www/discourse/app/jobs/base.rb:301:in 'Jobs::Base#perform' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:220:in 'Sidekiq::Processor#execute_job' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:185:in 'block (4 levels) in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:180:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
/var/www/discourse/lib/sidekiq/suppress_user_email_errors.rb:6:in 'Sidekiq::SuppressUserEmailErrors#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
/var/www/discourse/lib/sidekiq/discourse_event.rb:6:in 'Sidekiq::DiscourseEvent#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
/var/www/discourse/lib/sidekiq/pausable.rb:131:in 'Sidekiq::Pausable#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/job/interrupt_handler.rb:9:in 'Sidekiq::Job::InterruptHandler#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/metrics/tracking.rb:26:in 'Sidekiq::Metrics::ExecutionTracker#track' 
sidekiq-7.3.10/lib/sidekiq/metrics/tracking.rb:134:in 'Sidekiq::Metrics::Middleware#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:173:in 'Sidekiq::Middleware::Chain#invoke' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:184:in 'block (3 levels) in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:145:in 'block (6 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_retry.rb:118:in 'Sidekiq::JobRetry#local' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:144:in 'block (5 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/config.rb:39:in 'block in <class:Config>' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:139:in 'block (4 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:281:in 'Sidekiq::Processor#stats' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:134:in 'block (3 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_logger.rb:15:in 'Sidekiq::JobLogger#call' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:133:in 'block (2 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_retry.rb:85:in 'Sidekiq::JobRetry#global' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:132:in 'block in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_logger.rb:40:in 'Sidekiq::JobLogger#prepare' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:131:in 'Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:183:in 'block (2 levels) in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:182:in 'Thread.handle_interrupt' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:182:in 'block in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:181:in 'Thread.handle_interrupt' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:181:in 'Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:86:in 'Sidekiq::Processor#process_one' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:76:in 'Sidekiq::Processor#run' 
sidekiq-7.3.10/lib/sidekiq/component.rb:10:in 'Sidekiq::Component#watchdog' 
sidekiq-7.3.10/lib/sidekiq/component.rb:19:in 'block in Sidekiq::Component#safe_thread'

info

Unrecognized error type (ActiveRecord::Deadlocked: PG::TRDeadlockDetected: ERROR:  deadlock detected
DETAIL:  Process 1170676 waits for ShareLock on transaction 3318694; blocked by process 1169876.
Process 1169876 waits for ExclusiveLock on tuple (4,27) of relation 74547 of database 16384; blocked by process 1170546.
Process 1170546 waits for ShareLock on transaction 3318690; blocked by process 1170676.
HINT:  See server log for query details.
CONTEXT:  while updating tuple (1,54) in relation "user_stats"
) when processing incoming email

Backtrace:
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in 'PG::Connection#exec'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in 'PG::Connection#async_exec'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:167:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::DatabaseStatements#perform_query'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/abstract/database_statements.rb:556:in 'block (2 levels) in ActiveRecord::ConnectionAdapters::DatabaseStatements#raw_execute'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/abstract_adapter.rb:1022:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.5/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/abstract_adapter.rb:991:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_ad...

env

hostname	ubuntu-app
process_id	2297
application_version	5f0d95e1f11a9cb5acbe8c7a61142400fc506f06
job	Jobs::ProcessEmail
db	default
time	7:48 pm

backtrace

activesupport-8.0.5/lib/active_support/broadcast_logger.rb:218:in 'block in ActiveSupport::BroadcastLogger#dispatch' 
activesupport-8.0.5/lib/active_support/broadcast_logger.rb:217:in 'Array#map' 
activesupport-8.0.5/lib/active_support/broadcast_logger.rb:217:in 'ActiveSupport::BroadcastLogger#dispatch' 
activesupport-8.0.5/lib/active_support/broadcast_logger.rb:129:in 'ActiveSupport::BroadcastLogger#error' 
/var/www/discourse/lib/email/processor.rb:126:in 'Email::Processor#handle_failure' 
/var/www/discourse/lib/email/processor.rb:31:in 'Email::Processor#process!' 
/var/www/discourse/lib/email/processor.rb:13:in 'Email::Processor.process!' 
/var/www/discourse/app/jobs/regular/process_email.rb:8:in 'Jobs::ProcessEmail#execute' 
/var/www/discourse/app/jobs/base.rb:318:in 'block (2 levels) in Jobs::Base#perform' 
rails_multisite-7.0.0/lib/rails_multisite/connection_management/null_instance.rb:49:in 'RailsMultisite::ConnectionManagement::NullInstance#with_connection'
rails_multisite-7.0.0/lib/rails_multisite/connection_management.rb:17:in 'RailsMultisite::ConnectionManagement.with_connection'
/var/www/discourse/app/jobs/base.rb:305:in 'block in Jobs::Base#perform' 
/var/www/discourse/app/jobs/base.rb:301:in 'Array#each' 
/var/www/discourse/app/jobs/base.rb:301:in 'Jobs::Base#perform' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:220:in 'Sidekiq::Processor#execute_job' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:185:in 'block (4 levels) in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:180:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
/var/www/discourse/lib/sidekiq/suppress_user_email_errors.rb:6:in 'Sidekiq::SuppressUserEmailErrors#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
/var/www/discourse/lib/sidekiq/discourse_event.rb:6:in 'Sidekiq::DiscourseEvent#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
/var/www/discourse/lib/sidekiq/pausable.rb:131:in 'Sidekiq::Pausable#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/job/interrupt_handler.rb:9:in 'Sidekiq::Job::InterruptHandler#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:183:in 'block in Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/metrics/tracking.rb:26:in 'Sidekiq::Metrics::ExecutionTracker#track' 
sidekiq-7.3.10/lib/sidekiq/metrics/tracking.rb:134:in 'Sidekiq::Metrics::Middleware#call' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:182:in 'Sidekiq::Middleware::Chain#traverse' 
sidekiq-7.3.10/lib/sidekiq/middleware/chain.rb:173:in 'Sidekiq::Middleware::Chain#invoke' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:184:in 'block (3 levels) in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:145:in 'block (6 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_retry.rb:118:in 'Sidekiq::JobRetry#local' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:144:in 'block (5 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/config.rb:39:in 'block in <class:Config>' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:139:in 'block (4 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:281:in 'Sidekiq::Processor#stats' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:134:in 'block (3 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_logger.rb:15:in 'Sidekiq::JobLogger#call' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:133:in 'block (2 levels) in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_retry.rb:85:in 'Sidekiq::JobRetry#global' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:132:in 'block in Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/job_logger.rb:40:in 'Sidekiq::JobLogger#prepare' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:131:in 'Sidekiq::Processor#dispatch' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:183:in 'block (2 levels) in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:182:in 'Thread.handle_interrupt' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:182:in 'block in Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:181:in 'Thread.handle_interrupt' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:181:in 'Sidekiq::Processor#process' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:86:in 'Sidekiq::Processor#process_one' 
sidekiq-7.3.10/lib/sidekiq/processor.rb:76:in 'Sidekiq::Processor#run' 
sidekiq-7.3.10/lib/sidekiq/component.rb:10:in 'Sidekiq::Component#watchdog' 
sidekiq-7.3.10/lib/sidekiq/component.rb:19:in 'block in Sidekiq::Component#safe_thread'

info

Unrecognized error type (ActiveRecord::Deadlocked: PG::TRDeadlockDetected: ERROR:  deadlock detected
DETAIL:  Process 1170678 waits for ShareLock on transaction 3318690; blocked by process 1170676.
Process 1170676 waits for ShareLock on transaction 3318694; blocked by process 1169876.
Process 1169876 waits for ExclusiveLock on tuple (4,27) of relation 74547 of database 16384; blocked by process 1170678.
HINT:  See server log for query details.
CONTEXT:  while locking tuple (4,27) in relation "categories"
) when processing incoming email

Backtrace:
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in 'PG::Connection#exec'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/rack-mini-profiler-4.0.1/lib/patches/db/pg/alias_method.rb:109:in 'PG::Connection#async_exec'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:167:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::DatabaseStatements#perform_query'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/abstract/database_statements.rb:556:in 'block (2 levels) in ActiveRecord::ConnectionAdapters::DatabaseStatements#raw_execute'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/abstract_adapter.rb:1022:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.0.5/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_adapters/abstract_adapter.rb:991:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
  /var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activerecord-8.0.5/lib/active_record/connection_ada...

Ethsim2 · 7 أبريل 2026، 9:37م

مرحباً، شكراً لوقتك - أود التأكد من جمع البيانات الصحيحة الإضافية قبل تشغيل أي شيء مزعج على الخادم.

بناءً على حالة التعطّل (deadlock) وكيفية تشغيل Jobs::ProcessEmail، أعتقد أن ما يلي قد يساعد في تضييق نطاق المشكلة، لكنني أقدر التأكيد قبل المضي قدماً.

1. مقارنة رؤوس البريد الإلكتروني (فشل مقابل نجاح)

يمكنني استخراج ونشر رؤوس أولية محذوفة الهوية من:

/admin/email/received → “إظهار الأصل”

بالنسبة لـ:

بريد إلكتروني واحد فشل

أو كلاهما حسب

بريد إلكتروني واحد نجح بنفس النمط

حسب

سيشمل ذلك:

Message-ID
From
To
Delivered-To
Return-Path
أسطر Received: العلوية

هل ستكون هذه المقارنة مفيدة هنا؟

2. نتيجة مهمة Sidekiq (إعادة المحاولة / مجموعة الموتى)

بما أن هذا يحدث داخل Jobs::ProcessEmail، يمكنني التحقق مما إذا كانت المهام:

أعادت المحاولة
نجحت في النهاية
أو انتهت في مجموعة الموتى (dead set)

باستخدام:

./launcher enter app
rails c
Sidekiq::RetrySet.new.select { |j| j.klass == "Jobs::ProcessEmail" }
Sidekiq::DeadSet.new.select { |j| j.klass == "Jobs::ProcessEmail" }

هل سيساعد تأكيد سلوك إعادة المحاولة/مجموعة الموتى في تشخيص هذه المشكلة؟

إعدادات التوازي (Concurrency)

لقد ذكرت أنني أعمل مع عامل ويب واحد، لكنني أدرك أن توازي Sidekiq قد يكون أكثر صلة بحالة التعطّل.

يمكنني مشاركة القيم ذات الصلة من app.yml، مثل:

UNICORN_WORKERS:
SIDEKIQ_CONCURRENCY:

في الوقت الحالي، لم أقم بتعيين SIDEKIQ_CONCURRENCY صراحةً في app.yml، لذا أعتقد أن هذا يعمل مع التوازي الافتراضي (أي عدة خيوط Sidekiq).

هل سيكون ذلك سياقاً مهماً لتفسير حالة التعطّل؟

إصدار PostgreSQL

بما أن هذه حالة PG::TRDeadlockDetected، يمكنني أيضاً تأكيد إصدار PostgreSQL الدقيق المستخدم.

هل يستحق ذلك الإدراج؟

توقيت ورود البريد الإلكتروني

لاحظت أن البريد الإلكترونيين الفاشلين تم معالجتهما في وقت متقارب جداً (في نفس الدقيقة).

يمكنني استخراج توقيت أكثر دقة من السجلات إذا كان ذلك مفيداً.

هل سيساعد الارتباط الزمني الأكثر دقة في تأكيد ما إذا كانت هذه مشكلة ناتجة عن التوازي؟

إذا كان ذلك مفيداً، يمكنني جمع ونشر كل ما سبق في متابعة - أردت فقط التحقق مما سيكون الأكثر فائدة أولاً.

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