Falko<p><strong>Fixing PaperlessNGX Email Processing Issues After Restart</strong></p><p>When running <a href="https://docs.paperless-ngx.com" rel="nofollow noopener noreferrer" target="_blank">PaperlessNGX</a> in Docker, I encountered an issue where certain emails were not processed after restarting the Paperless container in the middle of a batch processing operation. Paperless saw the emails in the inbox but incorrect</p><p>ly marked them as already processed.</p><p><strong>Identifying the Issue</strong></p><p>The first step to diagnose the issue was to check the <code>mail.log</code> file within Paperless. The log provided information on which emails were skipped from processing, including their unique IDs. For example:</p><pre><code>[2025-02-17 09:50:03,084] [DEBUG] [paperless_mail] Skipping mail '321' subject 'Email from Epson WF-4830 Series' from 'scanner@example.com', already processed.</code></pre><p><strong>Logging into the Database</strong></p><p>To access the Paperless database running inside a Docker container, I used the following command:</p><pre><code>docker compose exec db /bin/bash</code></pre><p>This command opens a bash shell inside the <code>db</code> service container, allowing further interaction with PostgreSQL.</p><p><strong>Resolving the Issue</strong></p><p>To resolve the issue, I connected to the Paperless database, which was running on PostgreSQL. Using the provided email UID from the <code>mail.log</code>, I deleted the corresponding entries from the <code>paperless_mail_processedmail</code> table to allow Paperless to process the email again.</p><pre><code>psql -U paperless_db_user</code></pre><p>Here’s the SQL command I used:</p><pre><code>DELETE FROM paperless_mail_processedmail WHERE uid = '322';</code></pre><p>After running this command for every of the reported mails that are skipped, Paperless successfully reprocessed the emails during the next processing cycle.</p><p><strong>Conclusion</strong></p><p>If you encounter similar issues with PaperlessNGX not processing certain emails after a restart, checking the <code>mail.log</code> and manually deleting the processed mail entries from the database can be an effective solution.</p><p><a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://falko.zurell.de/tag/docker/" target="_blank">#docker</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://falko.zurell.de/tag/en_en/" target="_blank">#enEN</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://falko.zurell.de/tag/paperless/" target="_blank">#paperless</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://falko.zurell.de/tag/paperlessngx/" target="_blank">#paperlessNGX</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://falko.zurell.de/tag/postgres/" target="_blank">#Postgres</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://falko.zurell.de/tag/postgresql/" target="_blank">#PostgreSQL</a></p>