Use cases
You are the marketer who owns the SPF record, argues with IT about DKIM selectors, and reads SMTP transcripts. Browser-only ESPs hide the details you need. MailFleet is built for hands-on operators who want provider control, integrated diagnostics, and log-level truth.
Problem → solution
Capabilities
Test connections, read errors, and fix auth issues without waiting on support.
Validate SPF, DKIM, and DMARC with free checkers linked to your workflow.
Swap SES for SendGrid when contracts change — same desktop app.
Understand pacing limits before you trigger provider throttles.
Parse Authentication-Results and Received chains on mailfleet.app.
Configure proxy profiles for segmented sending environments.
Feature matrix
| Capability | MailFleet | Marketer-only cloud | Notes |
|---|---|---|---|
| Direct SMTP configuration | Yes | No | — |
| Integrated SpamAssassin | Yes | Partial | — |
| Free DNS/deliverability tools | Yes | Partial | — |
| Provider portability | Yes | No | — |
| Drag-and-drop email builder | Partial | Yes | — |
| Non-technical teammate onboarding | Partial | Yes | — |
| Local log export | Yes | Partial | — |
| License pricing | Yes | No | — |
Detailed comparison
| Technical task | MailFleet | Marketer-only cloud |
|---|---|---|
| Fix SPF/DKIM misalignment | Free checkers + docs | Generic help articles |
| Read SMTP bounce codes | Built-in lookup + logs | Aggregated bounce categories |
| Test new provider | Profile + diagnostic send | Migration project |
| Pre-send content score | SpamAssassin integrated | Basic spam score if any |
| Own sending relationship | Your provider account | Vendor-mediated |
Workflow
Run SPF, DKIM, DMARC, and rDNS checks on mailfleet.app.
Add SMTP/API profile and verify with diagnostics.
SpamAssassin pass on template before scheduling.
Use capacity scoring aligned to provider limits.
Export logs; use header analyzer on problem messages.
Scenarios
After IT rotates DKIM keys, confirm publication before resuming campaigns.
Move to a new API provider without rebuilding templates in a new cloud UI.
SMTP diagnostics + blacklist check + log export in one afternoon.
Decision framework
MailFleet → MailFleet amplifies that access.
Alternative → Limited DNS → cloud may abstract it.
MailFleet → Built for you.
Alternative → Prefer summaries → cloud dashboards.
MailFleet → Required — and worth it for control.
Alternative → Browser-only mandate → cloud.
Pricing
Flat software pricing — scale your use case without per-seat campaign tax.
$49 per year
Best for users who want to test MailFleet in real campaign workflows before committing long term.
Get 1 Year License$79 one-time
Best for serious campaign operators who want one payment, long-term access, and no recurring software subscription.
Get Lifetime LicenseYou sit between marketing goals and infrastructure reality. You know what a PTR record is, you have opinions on envelope-from domains, and you have been burned by +all in SPF. MailFleet respects that skill set instead of hiding it behind simplified toggles.
MailFleet desktop plus mailfleet.app free tools cover the loop from DNS publication to post-send forensics — without juggling ten browser tabs before every launch.
MailFleet is desktop email campaign software for technical marketers who manage SMTP/API providers, run SpamAssassin and DNS diagnostics, and maintain local campaign logs on Windows, macOS, and Linux.
MailFleet for Technical Marketers: desktop campaign software with DNS tools, SMTP diagnostics, and provider control.
Technical marketers choose MailFleet because delivery is an engineering problem dressed as a campaign. Download, run your authentication checklist, and send with evidence.
For regulatory context on commercial email in the United States, see the FTC CAN-SPAM compliance guide.
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.
SPF, DKIM, DMARC, then SpamAssassin and SMTP diagnostics before any major send.
Get started
Provider control, SpamAssassin, DNS tools, and local logs — download MailFleet today.
Available on
Same desktop experience across every platform — one workflow for your entire team.
