{
    "mode": "man",
    "parameter": "postcat",
    "section": "1",
    "url": "https://www.chedong.com/phpMan.php/man/postcat/1/json",
    "generated": "2026-06-02T19:34:40Z",
    "synopsis": "postcat [-bdehnoqv] [-c configdir] [files...]",
    "sections": {
        "NAME": {
            "content": "postcat - show Postfix queue file contents\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "postcat [-bdehnoqv] [-c configdir] [files...]\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "The  postcat(1)  command  prints  the contents of the named files in human-readable form. The\nfiles are expected to be in Postfix queue file format. If no files are specified on the  com‐\nmand line, the program reads from standard input.\n\nBy  default,  postcat(1)  shows the envelope and message content, as if the options -beh were\nspecified. To view message content only, specify -bh (Postfix 2.7 and later).\n\nOptions:\n",
            "subsections": [
                {
                    "name": "-b -b",
                    "content": "line, and stops when the end of the message is reached.\n\nThis feature is available in Postfix 2.7 and later.\n",
                    "flag": "-b"
                },
                {
                    "name": "-c",
                    "content": "The  main.cf  configuration file is in the named directory instead of the default con‐\nfiguration directory.\n",
                    "flag": "-c"
                },
                {
                    "name": "-d",
                    "content": "",
                    "flag": "-d"
                },
                {
                    "name": "-e",
                    "content": "This feature is available in Postfix 2.7 and later.\n",
                    "flag": "-e"
                },
                {
                    "name": "-h -h",
                    "content": "message up to, but not including, the first non-header line.\n\nThis feature is available in Postfix 2.7 and later.\n",
                    "flag": "-h"
                },
                {
                    "name": "-o",
                    "content": "",
                    "flag": "-o"
                },
                {
                    "name": "-q",
                    "content": "This feature is available in Postfix 2.0 and later.\n",
                    "flag": "-q"
                },
                {
                    "name": "-v -v",
                    "content": "increasingly verbose.\n",
                    "flag": "-v"
                }
            ]
        },
        "DIAGNOSTICS": {
            "content": "Problems are reported to the standard error stream.\n",
            "subsections": []
        },
        "ENVIRONMENT": {
            "content": "MAILCONFIG\nDirectory with Postfix configuration files.\n",
            "subsections": []
        },
        "CONFIGURATION PARAMETERS": {
            "content": "The following main.cf parameters are especially relevant to this program.\n\nThe text below provides only a parameter summary. See postconf(5) for more details  including\nexamples.\n\nconfigdirectory (see 'postconf -d' output)\nThe default location of the Postfix main.cf and master.cf configuration files.\n\nimportenvironment (see 'postconf -d' output)\nThe  list of environment parameters that a privileged Postfix process will import from\na non-Postfix parent process, or name=value environment overrides.\n\nqueuedirectory (see 'postconf -d' output)\nThe location of the Postfix top-level queue directory.\n",
            "subsections": []
        },
        "FILES": {
            "content": "/var/spool/postfix, Postfix queue directory\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "postconf(5), Postfix configuration\n",
            "subsections": []
        },
        "LICENSE": {
            "content": "The Secure Mailer license must be distributed with this software.\n\nAUTHOR(S)\nWietse Venema\nIBM T.J. Watson Research\nP.O. Box 704\nYorktown Heights, NY 10598, USA\n\nWietse Venema\nGoogle, Inc.\n111 8th Avenue\nNew York, NY 10011, USA\n\n\n\nPOSTCAT(1)",
            "subsections": []
        }
    },
    "summary": "postcat - show Postfix queue file contents",
    "flags": [
        {
            "flag": "-b",
            "long": null,
            "arg": null,
            "description": "line, and stops when the end of the message is reached. This feature is available in Postfix 2.7 and later."
        },
        {
            "flag": "-c",
            "long": null,
            "arg": null,
            "description": "The main.cf configuration file is in the named directory instead of the default con‐ figuration directory."
        },
        {
            "flag": "-d",
            "long": null,
            "arg": null,
            "description": ""
        },
        {
            "flag": "-e",
            "long": null,
            "arg": null,
            "description": "This feature is available in Postfix 2.7 and later."
        },
        {
            "flag": "-h",
            "long": null,
            "arg": null,
            "description": "message up to, but not including, the first non-header line. This feature is available in Postfix 2.7 and later."
        },
        {
            "flag": "-o",
            "long": null,
            "arg": null,
            "description": ""
        },
        {
            "flag": "-q",
            "long": null,
            "arg": null,
            "description": "This feature is available in Postfix 2.0 and later."
        },
        {
            "flag": "-v",
            "long": null,
            "arg": null,
            "description": "increasingly verbose."
        }
    ],
    "examples": [],
    "see_also": [
        {
            "name": "postconf",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/postconf/5/json"
        }
    ]
}