Unclear `export-eml` command

[eliluong]

Hello, I am using msgvault v0.6.0 on Windows.

I encountered a few issues during email sync: time=2026-02-05T14:41:44.346-08:00 level=WARN msg="MIME parse failed, storing with placeholder" id=12268b8368b179b8 error="Failed to ReadParts: mime: invalid media parameter".

So I exported to try to export to examine:

PS C:\! incoming\msgvault> .\msgvault.exe --config .\config.toml export-eml --gmail-id 12268b8368b179b8                                
Error: unknown flag: --gmail-id
PS C:\! incoming\msgvault> .\msgvault.exe --config .\config.toml export-eml --gmail-id 12268b8368b179b8 -
Error: unknown flag: --gmail-id
PS C:\! incoming\msgvault> .\msgvault.exe --config .\config.toml export-eml 12268b8368b179b8 -           
Error: accepts 1 arg(s), received 2
PS C:\! incoming\msgvault> .\msgvault.exe --config .\config.toml export-eml 12268b8368b179b8  
Exported message to: 12268b8368b179b8.eml (8624 bytes)

The flag --gmail-id does not seem to work, nor sending to stout. This was following the docs: https://www.msgvault.io/usage/exporting/. Eventually, the last command worked, but it exported to a message instead of just printing onto the screen. I think the export commands need to be clarified and updated. Thank you.

[wesm]

Thanks. I think this is just a lack of testing / QA issue so thanks for trying this command (I have never used it myself, so clearly you are bumping into agent hallucinations). We will make sure it works and update the docs to be clear and accurate

[eliluong]

Thanks for the quick reply, wesm.

Also, I looked at the email I exported and the cause of the MIME error was the email (from 2009) had Content-Type: text/plain; and Content-Type: text/html;, which I guess not a "correct" way of formatting an email. The email was a mix of plain + HTML, so I don't think it has any real impact as far as I know.