---
name: "mixmaster-filter"
section: "1"
platform: "linux"
package: "mixmaster"
version: "3.0.0-8.1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/mixmaster-filter"
---

# mixmaster-filter(1)

Wrapper around mixmaster that removes unwanted header lines

## NAME

mixmaster-filter - Wrapper around mixmaster that removes unwanted header lines

## SYNOPSIS

- **mixmaster-filter**

  ## DESCRIPTION

**mixmaster-filter** is a wrapper around mixmaster. It will filter out header lines which may endager your anonymity.

All but a few options are passed on to mixmaster as is. If you specify **-m**, **-g**, **-l** or **-n** (see [*mixmaster*(1)](/mixmaster/1.md)) then STDIN is filtered, otherwise mixmaster is executed as is.

It is intented to be used from Mail User Agents like the [*mutt*(1)](/mutt/1.md) email reader.

## OPTIONS

- **--mixmaster**=*MIXMASTER*

  Set the path to the mixmaster binary.

- **--configfile**=*FILTERCONFIGFILE*

  Set a config file for **mixmaster-filter**.

- **--help**

  Print a brief help message and exit successfully.

- **--version**

  Print a version information and exit successfully.

All other options are passed through to mixmaster.

## FILES

- **--configfile** parameter

  - MIXMASTER\_FILTER\_CONF environment

  - **~/.Mix/filter.conf**

  - **/etc/mixmaster/filter.conf**

  The first file that is found is used.

## FILEFORMAT

The configuration file for **mixmaster-filter** is simple. Lines with whitespace only are ignored as are lines that have the hash our pound (`"#"`) sign as their first non whitespace character.

Lines are always truncated at the first hash our pound (`"#"`) sign.

The first logical line gives the filtering policy. It's either `"FILTER"` or `"ALLOW"`.

All other lines are taken as a list of Headers.

If your policy is `"FILTER"` headers in your list will get removed from messages.

If your policy is `"ALLOW"` only headers in your list will be passed to mixmaster.

## ENVIRONMENT

- MIXMASTER\_FILTER\_CONF

  Config file to use

- HOME

  Your homedirectory. Used for finding your user configuration file. Also the default destination directory is `$HOME`/.Mix/

## SEE ALSO

[**mixmaster**(1)](/mixmaster/1.md)

## BUGS

It is far from perfect but should handle most standard cases satisfactorily.

Please report them to the Debian Bug Tracking System as described at `"http://bugs.debian.org/"` or use a tool like [*reportbug*(1)](/reportbug/1.md).

## AUTHOR

Peter Palfrader, \<peter@palfrader.org\>