OnWorks favicon

cancelmsg - Online in the Cloud

Run cancelmsg in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command cancelmsg that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



cancelmsg - Cancel an E-mail message


cancelmsg {msgid} ["reason"]


cancelmsg removes a message from the mail queue. There will be no more attempts to deliver
this message, and a standard delivery failure notice is sent to the return address listed
on the message. You can only cancel your own messages. The superuser can cancel any
message. An attempt to cancel a message will fail if the message has already been sent (of
course), or if a delivery attempt is currently in progress. Because a delivery attempt is
usually started as soon as an E-mail message is added to the mail queue, a cancellation
attempt is only effective if the message cannot be immediately delivered for some reason,
or if the system is very busy and is working on a mail backlog. cancelmsg works by
marking all pending recipients as undeliverable. A non-delivery report is then generated
and sent in the normal fashion.

msgid is the message queue id that can be obtained from the mailq(1)[1], command. A reason
is optional. The message does not disappear into a black void. The message will be
returned as undeliverable, citing reason. A generic error message will be used if reason
is not specified.

Use cancelmsg online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    DivKit is an open source Server-Driven
    UI (SDUI) framework. It allows you to
    roll out server-sourced updates to
    different app versions. Also, it can be
    used fo...
    Download DivKit
  • 2
    Utility to convert between various
    subscription format. Shadowrocket users
    should use ss, ssr or v2ray as target.
    You can add &remark= to
    Telegram-liked HT...
    Download subconverter
  • 3
    SWASH is a general-purpose numerical
    tool for simulating unsteady,
    non-hydrostatic, free-surface,
    rotational flow and transport phenomena
    in coastal waters as ...
    Download SWASH
  • 4
    VBA-M (Archived - Now on Github)
    VBA-M (Archived - Now on Github)
    Project has moved to
    Features:Cheat creationsave statesmulti
    system, supports gba, gbc, gb, sgb,
    Download VBA-M (Archived - Now on Github)
  • 5
    Linux System Optimizer and Monitoring
    Github Repository:
    Audience: End Users/Desktop. User
    interface: Qt. Programming La...
    Download Stacer
  • 6
    Fork of TeamWinRecoveryProject(TWRP)
    with many additional functions, redesign
    and more Features:Supports Treble and
    non-Treble ROMsUp-to-date Oreo kernel,
    Download OrangeFox
  • More »

Linux commands