# Extract all email headers from an eml file?
**URL:** https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949
**Category:** General
**Created:** [9 June 2021 22:36 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949 "2021-06-09T22:36:01Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@crester](https://discourse.nodered.org/u/crester)
#### Post date: [9 June 2021 22:36 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949/1 "2021-06-09T22:36:01Z")
Hello.
I need to extract all e-mail headers from a eml file and write them in a separate file
I have seen mailparser contrib but it doesn't work
does someone know how can I perform this action in node red?
Thank you.
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [9 June 2021 22:45 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949/2 "2021-06-09T22:45:53Z")
A quick Internet search showed up plenty of articles about the structure of a .eml file. It appears to be mainly text-based I think so you should be able to dump it to debug and then start to look at the structure and work out where to split it.
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [9 June 2021 22:48 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949/3 "2021-06-09T22:48:55Z")
You may be able to use [eml-parser - npm](https://www.npmjs.com/package/eml-parser) if installed and called from a function node as it looks fairly recent
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### Author:  [@crester](https://discourse.nodered.org/u/crester)
#### Post date: [10 June 2021 09:43 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949/4 "2021-06-10T09:43:14Z")
Sounds really good.
perhaps the issue is that I have nodered in docker and it is not easy to install packages inside it.
I will open a new thread to ask it.
Thank you
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### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [11 June 2021 15:54 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949/5 "2021-06-11T15:54:01Z")
> [@crester](#):
>
> docker
Hmm, but then that isn't a Node-RED issue is it? 😀
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [10 August 2021 15:54 UTC](https://discourse.nodered.org/t/extract-all-email-headers-from-an-eml-file/46949/6 "2021-08-10T15:54:25Z")
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