Coremail silent install & uninstall

Commands for installing Coremail without prompts, removing it again and detecting it from deployment tools. A command is shown only when it is certain: from the manifest or the installer technology’s documented default.

With winget

PowerShell

winget install --id Coremail.CMClient -e --silent --accept-package-agreements --accept-source-agreements

winget upgrade --id Coremail.CMClient -e --silent

winget uninstall --id Coremail.CMClient -e --silent

By installer

64-bit · EXE (Inno Setup) · All users · en-US

Silent installcmclient_4.2.3-1614_amd64.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-

Custom foldercmclient_4.2.3-1614_amd64.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- /DIR="C:\Apps\coremail"

Uninstall registry key: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\CMClient_is1
Install folder: %ProgramFiles%\cmclient

32-bit · EXE (Inno Setup) · All users · en-US

Silent installcmclient_4.2.3-1614_amd32.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-

Custom foldercmclient_4.2.3-1614_amd32.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- /DIR="C:\Apps\coremail"

Uninstall registry key: HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\CMClient_is1
Install folder: %ProgramFiles%\cmclient

PowerShell: download, verify, install

Downloads the official file, checks its SHA256 and installs it silently.

install-coremail.ps1

$url = 'https://lunkrcdn.icoremail.net/cab/publish/lunkr4mail/cmclient_4.2.3-1614_amd64.exe'
$sha256 = 'BCACC561890C5625FB993D919C5178AB6C0DBF538453522A4910CD95C40FF8DD'
$file = Join-Path $env:TEMP 'cmclient_4.2.3-1614_amd64.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-' -Wait