---
name: "kpush"
section: "8"
platform: "linux"
package: "kerberos4kth-servers"
version: "1.2.2-11.2"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/kpush"
---

# kpush(8)

fetch mail via POP

## NAME

**push** – fetch mail via POP

## SYNOPSIS

**push** \[**-4** \| **--krb4**\] \[**-5** \| **--krb5**\] \[**-v** \| **--verbose**\] \[**-f** \| **--fork**\] \[**-l** \| **--leave**\] \[**--from**\] \[**-c** \| **--count**\] \[**--headers**=*headers*\] \[**-p** *port-spec* **--port**=*port-spec*\] *po-box* *filename*

## DESCRIPTION

**push** retrieves mail from the post office box *po-box*, and stores the mail in mbox format in *filename*. The *po-box* can have any of the following formats:

- ‘hostname:username’

  - ‘po:hostname:username’

  - ‘username@hostname’

  - ‘po:username@hostname’

  - ‘hostname’

  - ‘po:username’

  If no username is specified, **push** assumes that it's the same as on the local machine; *hostname* defaults to the value of the MAILHOST environment variable.

Supported options:

-

  **-4**, **--krb4** use Kerberos 4 (if compiled with support for Kerberos 4)

-

  **-5**, **--krb5** use Kerberos 5 (if compiled with support for Kerberos 5)

-

  **-f**, **--fork** fork before starting to delete messages

-

  **-l**, **--leave** don't delete fetched mail

-

  **--from** behave like from.

-

  **-c**, **--count** first print how many messages and bytes there are.

-

  **--headers**=*headers* a list of comma-separated headers that should get printed.

-

  **-p** *port-spec*, **--port**=*port-spec* use this port instead of the default ‘kpop’ or ‘1109’.

The default is to first try Kerberos 5 authentication and then, if that fails, Kerberos 4.

## ENVIRONMENT

- MAILHOST

  points to the post office, if no other hostname is specified.

## EXAMPLES

```
$ push cornfield:roosta ~/.emacs-mail-crash-box
```

tries to fetch mail for the user *roosta* from the post office at “cornfield”, and stores the mail in *~/.emacs-mail-crash-box* (you are using Gnus, aren't you?)

```
$ push --from -5 havregryn
```

tries to fetch **From:** lines for current user at post office “havregryn” using Kerberos 5.

## SEE ALSO

[from(1)](/from/1.md), [pfrom(1)](/pfrom/1.md), movemail(8), [popper(8)](/popper/8.md)

## HISTORY

**push** was written while waiting for **movemail** to finish getting the mail.