Typical cloud platform
- — Hosted sending stack with limited provider flexibility
- — Logs and diagnostics tied to vendor UI
- — Per-seat or per-send pricing models
Desktop campaign control
Email campaign control from your desktop.
Professional bulk email software for Windows, macOS, and Linux with SMTP/API provider support, approved network profile management, SpamAssassin checks, sending capacity scoring, webhooks, and detailed campaign logs.
Built for responsible campaign operators, agencies, SaaS teams, and technical marketers who need direct control over sending workflows.
WindowsmacOSLinux
WindowsmacOSLinuxSMTP/API Providers
MailFleet — Campaign ControlLive
Active campaign
Q2 Product Launch
Delivered
98.2%
Spam score
2.1
Capacity
84%
Send volume (7d)
3
Desktop platforms
Windows · macOS · Linux
15+
Pre-send diagnostics
SpamAssassin & DNS tools
∞
Provider profiles
Provider profiles included in both licenses
100%
Local log ownership
Your data stays on device
The problem
Email campaign ops break when control is fragmented
Technical teams and agencies need provider-level visibility — not another browser-only sender that hides infrastructure details.
- Campaign data scattered across browser tabs, spreadsheets, and provider dashboards.
- No consistent pre-send checks before high-volume permission-based sends.
- SMTP errors and bounce patterns buried in provider UIs instead of local audit logs.
- Agency and ops teams lack a single desktop control plane for multiple client providers.
The solution
Email campaign control from one professional desktop app
MailFleet connects to your SMTP and API providers, runs pre-send diagnostics, and keeps campaign operations on your machine with full audit visibility.
- One desktop workspace for templates, lists, schedules, and provider assignments.
- Integrated SpamAssassin checks, capacity scoring, and free DNS diagnostic tools.
- Granular local logs, exportable reports, and webhook events for your stack.
- Cross-platform support on Windows, macOS, and Linux with compliance-first policies.
Features
The control plane for serious email operators
MailFleet is built for teams that manage email seriously — with the infrastructure literacy to run their own providers.
Campaign manager
Create, schedule, pause, and monitor permission-based campaigns with full operational visibility across every provider profile.
ExploreSMTP & API providers
Multiple provider profiles with connectivity tests and per-campaign assignment.
ExploreSpamAssassin checker
Pre-send content and header analysis before you send.
ExploreSending capacity scoring
Score campaign load against provider limits before launch.
Proxy management
Proxy profile management with master, campaign-wise, and managed network profile assignment.
ExploreCampaign reports
Delivery, bounce, and provider performance summaries you can export for clients and stakeholders.
ExploreWebhooks
Real-time campaign events to your stack.
ExploreDetailed logs
Granular event history for troubleshooting and audits.
Template builder
Reusable templates with variables and previews.
Cross-platform desktop
Windows, macOS, and Linux with consistent workflows.
Explore
How it works
A desktop-first campaign pipeline
MailFleet keeps operational control on your machine — from provider setup through pre-send validation to post-send reporting.
Read the setup guideStep 01
Connect providers
Add SMTP or API profiles, test connectivity, and assign them per campaign or client workspace.
Step 02
Validate before send
Run SpamAssassin checks, capacity scoring, and DNS diagnostics so issues surface on your desktop first.
Step 03
Launch with visibility
Schedule sends, stream webhooks to your stack, and audit every event in granular local logs.
Step 04
Report & iterate
Export delivery, bounce, and provider performance summaries for clients and internal reviews.
Free tools
Diagnose deliverability before you hit send
Run quick checks in the browser. Production-grade diagnostics ship inside MailFleet desktop.
Featured tool
Email Blacklist Checker
Check if your domain or IP appears on major email blacklists. Understand reputation risk before launching campaigns with MailFleet.
Open tool- 02
SMTP Diagnostics
Free SMTP diagnostics tool: test host connectivity, STARTTLS/SSL, AUTH login, and send HTML or plain test messages with verbose protocol logs.
- 03
SpamAssassin Checker
Free SpamAssassin checker: analyze subject and HTML/plain body for spam score, triggered rules, and fix recommendations before sending campaigns.
- 04
SPF Checker
Validate SPF DNS records, authorized senders, lookup count, and syntax for your sending domain before configuring providers in MailFleet.
- 05
DKIM Checker
Scan your domain for all common DKIM selectors, validate public keys, explain every DNS tag, and report key strength — no manual selector lookup.
- 06
DMARC Checker
Check DMARC DNS records, policy mode, aggregate reporting addresses, and alignment guidance for your organizational sending domain.
- 07
MX Lookup
Look up MX records, priority values, and mail hostnames for any domain to understand inbound mail routing and DNS configuration.
- 08
Email Header Analyzer
Parse raw email headers to review SPF, DKIM, and DMARC authentication results, routing hops, delays, and delivery troubleshooting signals.
- 09
Reverse DNS Checker
Verify PTR reverse DNS records for sending IP addresses and check forward-confirmed reverse DNS alignment with your SMTP hostname.
Why desktop
Your providers. Your logs. Your machine.
Cloud platforms bundle sending and UI together. MailFleet gives technical teams direct control without surrendering operational data to a browser-only dashboard.
MailFleet desktop
- + Connect your own SMTP & API providers
- + Local logs, webhooks, and exportable reports
- + License-based pricing without per-email tax
Overview
What is MailFleet?
At a glance
- What it is
- Professional desktop email campaign control software for Windows, macOS, and Linux.
- Who it is for
- Responsible campaign operators, agencies, SaaS teams, technical marketers, newsletter operators, and deliverability consultants.
- Main capabilities
- Campaign management, SMTP/API provider profiles, approved network profile management, SpamAssassin checks, sending capacity scoring, webhooks, campaign reports, and detailed local logs.
- Platforms
- Windows 10+, macOS 12+, and Linux (DEB & RPM).
- Responsible use
- Built for permission-based campaigns and legitimate business communication — not unsolicited mail, list harvesting, or abuse. See /anti-spam-policy.
MailFleet is desktop email campaign software for Windows, macOS, and Linux. It helps teams manage email campaigns, templates, SMTP/API providers, SpamAssassin checks, sending capacity, approved network profiles, webhooks, reports, and detailed logs from one professional app. MailFleet is designed for responsible campaign operations using the user's own sending providers.
Delivery note: MailFleet helps users manage campaigns through their own sending providers. Delivery outcomes depend on sender reputation, DNS authentication, content quality, recipient engagement, list quality, provider rules, and mailbox filtering systems.
Use cases
Who MailFleet is built for
Desktop email campaign control for teams that need provider-level visibility, pre-send diagnostics, and compliance-first workflows.
- Agencies
- SaaS companies
- Technical marketers
- Newsletter operators
- Deliverability consultants
- Internal operations teams
Explore
Product pages, tools, and policies
Responsible sending by design
MailFleet is professional email campaign control software — not a cheap email blaster. Use permission-based lists, clear sender identity, unsubscribe handling, and provider rules you control. Read our anti-spam policy.
Delivery note: MailFleet helps users manage campaigns through their own sending providers. Delivery outcomes depend on sender reputation, DNS authentication, content quality, recipient engagement, list quality, provider rules, and mailbox filtering systems.
Pricing
1 Year or Lifetime — your choice
Simple desktop software pricing. No per-contact fees. No per-campaign fees. No per-email fees.
License
1 Year License
Best for users who want to test MailFleet in real campaign workflows before committing long term.
$49
per year
- Windows, macOS, and Linux desktop app
- Campaign manager
- Template manager
- SMTP/API provider management
- Proxy profiles
- SpamAssassin checks
- Sending capacity scoring
- Webhooks
- Best Value
License
Lifetime License
Best for serious campaign operators who want one payment, long-term access, and no recurring software subscription.
$79
one-time
Only $30 more than the 1 Year License.
- Windows, macOS, and Linux desktop app
- Campaign manager
- Template manager
- SMTP/API provider management
- Proxy profiles
- SpamAssassin checks
- Sending capacity scoring
- Webhooks
FAQ
Answers for operators evaluating MailFleet
Straight answers on desktop control, provider ownership, and responsible campaign workflows.
MailFleet is professional desktop email campaign control software for Windows, macOS, and Linux. It helps teams manage campaigns, templates, SMTP/API providers, proxies, SpamAssassin checks, capacity scoring, webhooks, and detailed logs from one cross-platform application.
Get started
Take control of your email campaign operations
Download MailFleet for Windows, macOS, or Linux. Connect your providers, run pre-send checks, and manage campaigns with full visibility.
Available on
- Windows 10+
- macOS 12+
- Linux (DEB & RPM)
Same desktop experience across every platform — one workflow for your entire team.