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About

InboxStack is an email deliverability intelligence platform built around Brain, a proprietary causal AI engine that identifies why emails miss the inbox — not just that they did. Most deliverability tools stop at monitoring: they show a drop in inbox placement or a blocklist hit and leave you to investigate. InboxStack goes further, correlating signals from your ESP, DNS authentication records (SPF, DKIM, DMARC), Google Postmaster Tools, Microsoft SNDS, and 50+ blocklists through a causal knowledge graph built on a 22-year deliverability knowledge base — tracing the actual root cause, whether it's a DKIM misalignment, IP reputation dip, or content trigger. Onboarding starts with forwarding your email headers for an instant DNS/auth audit, no migration required. Teams that want ongoing monitoring can connect their ESP and Postmaster accounts, with optional seed testing for real inbox-vs-spam placement data. Built especially for digital agencies and ESP's.

About

Suped is a DMARC monitoring platform that helps startups and enterprises secure their email. We provide clear analytics, instant threat alerts for spoofing attempts, and step-by-step guidance to strengthen your domain's security. Stop phishing, improve your domain reputation, and make sure your emails hit the inbox every time. DMARC Report Analysis: Automatically processes complex aggregate (RUA) and forensic (RUF) reports into a simple dashboard. Real-Time Threat Alerts: Instant notifications for potential domain spoofing and phishing attempts. Guided Policy Enforcement: Step-by-step guidance to safely strengthen your DMARC policy to p=reject without blocking legitimate email. SPF & DKIM Monitoring: Track authentication alignment across all your sending services to diagnose delivery issues. Domain Health Score: At-a-glance score based on your compliance, reputation, and blocklist status. Unlimited Domains: Monitor DMARC for all your domains from a single account.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Any comapny who sends emails or manages email campaigns

Audience

MSPs, cybersecurity consultants, email deliverability consultants, startups, enterprises

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$49/month
Free Version Not Supported
Free Trial Supported

Pricing

$11/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

InboxStack
Founded: 2025
India
inboxstack.com

Company Information

Suped
Founded: 2025
Australia
www.suped.com

Alternatives

Alternatives

DMARC Report

DMARC Report

DuoCircle

Categories

Categories

DMARC Supported
Email Security Supported
Email Testing Supported

Email Deliverability Features

Deliverability Alerts Supported
Deliverability Reporting Supported
DMARC Analytics Supported
Email Address Verification Supported
Email Content Testing Supported
Email Previewing Supported
Inbox Placement Testing Supported
IP Blacklist Monitoring Supported
Reputation Reporting Supported

Email Security Features

Anti Spam Not Supported
Anti Virus Not Supported
Email Attachment Protection Not Supported
Encryption Not Supported
Policy Management Not Supported
Quarantine Not Supported
Reporting/Analytics Supported
Whitelisting / Blacklisting Supported

Email Testing Features

A/B Testing Not Supported
Accessibility Testing Not Supported
Deliverability Rates Supported
DMARC Analytics Supported
HTML Validation Not Supported
Improvement Recommendations Not Supported
IP Blacklist Checking Supported
Pre-Send Email Testing Supported
Preview Across Browsers & Devices Not Supported
Reporting / Analytics Supported
Sender Reputation Scoring Supported
Spam Testing Supported

Integrations

Gmail Supported
Microsoft Outlook Supported
Yahoo! Mail Supported

Integrations

Gmail Supported
Microsoft Outlook Supported
Yahoo! Mail Not Supported
Claim InboxStack and update features and information
Claim InboxStack and update features and information
Claim Suped and update features and information
Claim Suped and update features and information