Email Trigger (Imap) stops working

Describe the problem/error/question

The node "Email Trigger (Imap)" stops working each time a new n8n version is released. It is only about the release of a new version, not the actual update.

What is the error message (if any)?

No error, the trigger just stops working.

Please share your workflow/screenshots/recording

After the last execution at 12:05:49 the mailbox had 16 new emails.

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.

every node "Email Trigger (Imap)" in each workflow is affected. here is one as an example:

{ "nodes": [ { "parameters": { "postProcessAction": "nothing", "format": "resolved", "options": { "customEmailConfig": "["UNSEEN"]", "trackLastMessageId": false } }, "type": "n8n-nodes-base.emailReadImap", "typeVersion": 2.2, "position": [ -560, 16 ], "id": "24bf93c8-5e75-4ac0-81bc-bc81b4b3108c", "name": "Email Trigger (IMAP)", "credentials": { "imap": { "id": "XEkghP4UsmICPimX", "name": "IMAP account" } } } ], "connections": { "Email Trigger (IMAP)": { "main": [ [] ] } }, "pinData": {}, "meta": { "templateCredsSetupCompleted": true, "instanceId": "9d700293fda00f38aaf1901f1a5e81659c76a1d5eef88a1a767d44848a036267" } }

Share the output returned by the last node

Debug info

Once the workspace gets updated or restarted the trigger starts working again until the next n8n-version gets released. So it happens every few days.

There is another report about it (#35789) but it was closed due to an incomplete template.

core

• n8nVersion: 2.39.4
• platform: docker (cloud)
• nodeJsVersion: 26.7.0
• nodeEnv: production
• database: sqlite
• executionMode: regular
• concurrency: 20
• license: enterprise (sandbox)

storage

• success: all
• error: all
• progress: false
• manual: true
• binaryMode: filesystem

pruning

• enabled: true
• maxAge: 720 hours
• maxCount: 25000 executions

client

• userAgent: mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/152.0.0.0 safari/537.36
• isTouchDevice: false

Generated at: 2026-09-15T12:37:54.833Z