Error 411- while uploading Videos on Pinterest with self-hosted Postiz

[CodAr-man]

I am on self-hosted version of postiz hosted through coolify with latest build.
I have standard access of Pinterest.
Images are getting uploaded easily without any error.
Videos are not getting uploaded. giving error in the Ui's notification bell.
When I checked the log directed by crawlchat I found this:

🧩 Error Summary

Source: Pinterest Posting
Timestamp: 2025-10-15T08:45:57
Worker Process: 2|workers
Error Type: AxiosError
Status Code: 411 Length Required
Message: Request failed with status code 411

📬 Error Message
AxiosError: Request failed with status code 411
at settle (/app/node_modules/axios/dist/node/axios.cjs:2053:12)
at IncomingMessage.handleStreamEnd (/app/node_modules/axios/dist/node/axios.cjs:3170:11)
at IncomingMessage.emit (node:events:530:35)
at endReadableNT (node:internal/streams/readable:1698:12)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21)
at Axios.request (/app/node_modules/axios/dist/node/axios.cjs:4280:41)
at async PinterestProvider.post (.../pinterest.provider.js:141:13)
at async PostsService.postSocial (.../posts.service.js:294:36)
at async PostsService.post (.../posts.service.js:216:31)
at async PostsController.post (.../posts.controller.js:19:20)

⚙️ Request Info

HTTP Method: POST
URL: https://pinterest-media-upload.s3-accelerate.amazonaws.com/
Content-Type: multipart/form-data
Headers:

{
"Accept": "application/json, text/plain, /",
"Content-Type": "multipart/form-data; boundary=--------------------------828645368384980935173385",
"User-Agent": "axios/1.10.0",
"Accept-Encoding": "gzip, compress, deflate, br"
}

Body: {} (Empty or missing content length)

⚠️ Environment Issue
Email sender information not found in environment variables

[David-Roklem]

Hello, @CodAr-man!
I also use self-hosted Postiz (Docker) and I've stumbled upoan a similar issue while trying to upload a video to Youtube. The warning also appears in UI's bell and the error text obtained from Postiz container logs is this:

event to dispatch:  {
2025-10-19T10:22:33.545806933Z 0|backend  |   pattern: 'post',
2025-10-19T10:22:33.545810026Z 0|backend  |   data: {
2025-10-19T10:22:33.545812595Z 0|backend  |     id: 'cmgxk5ctz000dsh6ukedt9clq',
2025-10-19T10:22:33.545833080Z 0|backend  |     options: { delay: 0 },
2025-10-19T10:22:33.545909014Z 0|backend  |     payload: { id: 'cmgxk5ctz000dsh6ukedt9clq', delay: 0 }
2025-10-19T10:22:33.545914485Z 0|backend  |   }
2025-10-19T10:22:33.545916907Z 0|backend  | }
2025-10-19T10:22:33.552044827Z 3|workers  | processing { id: 'cmgxk5ctz000dsh6ukedt9clq', delay: 0 }
2025-10-19T10:22:33.610081482Z 3|workers  | Email sender information not found in environment variables
2025-10-19T10:22:33.610400239Z 3|workers  | [Error] posting on youtube youtube {"code":"ERR_INVALID_URL","input":"undefined"} {} BadBody {
2025-10-19T10:22:33.610464618Z 3|workers  |   identifier: 'youtube',
2025-10-19T10:22:33.610542174Z 3|workers  |   json: '{"code":"ERR_INVALID_URL","input":"undefined"}',
2025-10-19T10:22:33.610546591Z 3|workers  |   body: {},
2025-10-19T10:22:33.610549061Z 3|workers  |   message: ''
2025-10-19T10:22:33.610551666Z 3|workers  | }

So it seems like the error has something to do with environment variables (Email sender information not found in environment variables) though I couldn't find any related var in my running container that should have been filled out

Hope, someone from the main contributors could reach out us and help solving the issue