Which file should I download for Linux?

Debian/Ubuntu/Mint: mailfleet_1.0.0_x86_64.deb or mailfleet_1.0.0_arm64.deb. Fedora/RHEL/CentOS: mailfleet-1.0.0-x86_64.rpm or mailfleet-1.0.0-arm64.rpm. Run uname -m to confirm architecture. Do not use Windows EXE files on Linux.

Are these installers signed?

MailFleet installers are signed for Windows, notarized for macOS, and published through this official directory. Verify SHA-256 checksums when published with your release.

Official downloads

Official MailFleet download directory

Every signed MailFleet installer in one place — Windows x86_64 and ARM64 EXE, macOS universal DMG and PKG, and Linux x86_64 and ARM64 DEB and RPM packages. Pick your platform row below and download directly from Secuno LLC.

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Official installers

Windows, macOS, and Linux builds

Platforms

One row per operating system

Hosted path

/assets/download

Curated directory — no raw folder browse

Windows2 files macOS2 files Linux4 files

Download only from this official directory

Installers listed here are the only official MailFleet builds published by Secuno LLC. Do not trust third-party mirrors, torrents, or repackaged copies. If a file is not listed below, it is not an official release.

All platforms — full-width installer rows

Each operating system is one full-width section. Expand the row that matches your machine, pick the correct processor or package format, and download the signed installer.

Windows
MailFleet for Windows
Windows 10 or later
Desktop email campaigns on Windows 10 and later
x86_64 and ARM64 installers
Signed setup EXE
Auto-update support
Windows install guide
Choose your processor — download
EXE64-bit (x86_64)Most common
MailFleet-x86_64-setup.exe
Windows setup installer
Download x86_64
EXEARM64
MailFleet-arm64-setup.exe
Windows setup installer
Download ARM64
Requirements
Windows 10 or later
1 GB RAM minimum (4 GB recommended)
Administrator approval may be required
Which file?
About 80% of Windows users need MailFleet-x86_64-setup.exe. Choose MailFleet-arm64-setup.exe only if Settings → System → About shows an ARM-based processor (e.g. Surface Pro X, premium ARM laptops).
Install notes
Most people need MailFleet-x86_64-setup.exe (standard 64-bit Intel/AMD PCs). Use MailFleet-arm64-setup.exe only on ARM Windows laptops and desktops such as Surface Pro X or Snapdragon PCs.
macOS
MailFleet for macOS
macOS 12 Monterey or later
Native Mac app for Apple Silicon and Intel
Universal DMG and PKG
Apple Silicon & Intel
Notarized build
macOS install guide
Choose your processor — download
DMGUniversal (Apple Silicon & Intel)Most common
MailFleet-1.0.0-universal.dmg
Disk image for drag-and-drop install
Download DMG
PKGUniversal (Apple Silicon & Intel)
MailFleet-1.0.0-universal.pkg
Installer package with setup wizard
Download PKG
Requirements
macOS 12 or later
Apple Silicon (M1/M2/M3) or Intel Mac
Gatekeeper approval for signed app if prompted
Which file?
Both MailFleet-1.0.0-universal.dmg and MailFleet-1.0.0-universal.pkg are universal Mac builds. Use DMG for drag-and-drop installation or PKG for the install wizard.
Install notes
Choose the universal DMG for drag-and-drop installation, or the universal PKG if you prefer the macOS install wizard. Both work on Apple Silicon and Intel Macs.
Linux
MailFleet for Linux
Debian/Ubuntu and Red Hat families (x86_64 & ARM64)
DEB and RPM packages for Debian, Ubuntu, Fedora, RHEL, and derivatives
DEB and RPM packages
x86_64 and ARM64
Desktop & server ready
Linux install guide
Choose your processor — download
DEB64-bit (x86_64)Most common
mailfleet_1.0.0_x86_64.deb
Debian package (Ubuntu, Debian, Mint)
Download x86_64 DEB
DEBARM64
mailfleet_1.0.0_arm64.deb
Debian package (Ubuntu, Debian, Mint)
Download ARM64 DEB
RPM64-bit (x86_64)
mailfleet-1.0.0-x86_64.rpm
RPM package (Fedora, RHEL, CentOS)
Download x86_64 RPM
RPMARM64
mailfleet-1.0.0-arm64.rpm
RPM package (Fedora, RHEL, CentOS)
Download ARM64 RPM
Requirements
64-bit x86_64 or ARM64 Linux
apt/dpkg (DEB) or dnf/yum (RPM) package manager
Outbound SMTP ports allowed by firewall
Which file?
Run uname -m: x86_64 needs the x86_64 package; aarch64 needs ARM64. Debian/Ubuntu/Mint use .deb files. Fedora/RHEL/CentOS use .rpm files.
Install notes
Debian-based distros (Ubuntu, Debian, Mint): use mailfleet_1.0.0_x86_64.deb or mailfleet_1.0.0_arm64.deb. Red Hat-based distros (Fedora, RHEL, CentOS): use mailfleet-1.0.0-x86_64.rpm or mailfleet-1.0.0-arm64.rpm.

Security and integrity

Directory listing is fixed — only known installer filenames are served; unknown files are blocked at the server.
Apache directory indexes are disabled — this page replaces raw folder browsing with a curated, branded listing.
Installers download with attachment disposition and nosniff headers where supported.
Verify SHA-256 checksums when published with your release. Report suspicious copies to security contact.

Signed installers for Windows, macOS, and Linux

DEB and RPM packages for x86_64 and ARM64 on Linux

Universal Mac DMG and PKG for Apple Silicon and Intel

License required before activation — purchase at pay.mailfleet.app

SHA-256 checksums published with releases when available

Canonical URL: https://mailfleet.app/assets/download

Official download directory — FAQ

Yes. This directory lists every official MailFleet installer. Download only from mailfleet.app/assets/download or the Download page — not third-party mirrors.

Get started

Need help choosing an installer?

Visit the Download page for architecture guidance, or read platform install docs for step-by-step setup.

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Available on

Windows 10+
macOS 12+
Linux (DEB & RPM)

Same desktop experience across every platform — one workflow for your entire team.