Know when a domain is
failing before it fails.
Mash monitors deliverability health across your entire sending fleet. Catch reputation decay early. Protect client results. Operate with confidence.
Fleet Overview
24 domains across 8 clients
| Domain | Client | Health Score | 7d Trend | Status | Alert |
|---|---|---|---|---|---|
| outreach.acmecorp.io | Acme Corp | 94 | +2 | healthy | — |
| send1.pinnacle.co | Pinnacle LLC | 71 | -8 | at-risk | Reduce volume |
| mail.orbitsaas.com | Orbit SaaS | 38 | -21 | critical | Pause sending |
| cold.acmecorp.io | Acme Corp | 88 | 0 | healthy | — |
| outreach2.pinnacle.co | Pinnacle LLC | 65 | -5 | at-risk | Rotate inbox |
Avg Fleet Score
81/100
↑ +3 this week
Active Alerts
3
2 require action
Domains Monitored
24
Across 8 clients
The problem
Reputation decay is silent
until it isn't.
By the time reply rates drop, your domain's reputation has been declining for weeks. You're not losing deliverability in a single event — you're losing it incrementally, across dozens of signals, on dozens of domains.
Most agencies find out when a client calls to ask why their pipeline went cold. At that point, the damage is done.
Mash surfaces those signals early — before they compound into client churn.
Typical domain health decay — undetected
Without monitoring, gradual decay goes unnoticed. By the time reply rates collapse, reputation recovery takes weeks — or months.
Before Mash
You find out when a client reports a problem. The damage is already done. Recovery takes weeks.
The gap
Weeks of gradual signal degradation across SPF, DKIM, bounce rates, spam traps, and inbox placement.
With Mash
Trend decay detected early. You act before reply rates fall. Client results stay stable.
Features
Built for the way agencies
actually operate.
Every feature in Mash is designed around the operational reality of managing multiple clients, multiple domains, and constant sending pressure.
Domain Health Scoring
Each domain gets a composite health score derived from SPF/DKIM/DMARC alignment, blacklist presence, bounce rate trends, spam trap hits, and inbox placement signals.
Scores update daily. Historical scoring gives you a 30-day trend baseline for every domain in your fleet.
Fleet-Level Visibility
See all your sending domains in one place — across all clients. Sort by health score, filter by status, and quickly triage which domains need attention.
No more jumping between tools. Your entire fleet, one interface.
Trend Detection
Mash computes week-over-week and 30-day trends for every domain. A healthy domain with a declining trend is a warning — not a clean bill of health.
Trend alerts fire before scores fall below thresholds. Earlier signal, earlier action.
Operational Alerts
When domains cross thresholds or show sustained decline, Mash generates specific, actionable recommendations — not just warnings.
Alerts include: Reduce volume, Rotate inbox provider, Pause sending, Audit authentication, and Review sending content.
How it works
From connection to alert
in under 7 days.
Mash is operational infrastructure — not a checklist. It runs continuously, surfaces what matters, and tells you exactly what to do.
Connect your domains
Add your sending domains via DNS records or API. Mash starts building a baseline immediately — no waiting period.
Supports all major sending infrastructure: Google Workspace, Outlook, Smartlead, Instantly, and custom SMTP setups.
Mash builds health baselines
Over the first 7 days, Mash establishes a performance baseline per domain — scoring across 24+ signals including authentication, blacklists, bounce rates, and inbox placement.
Baselines are domain-specific. A high-volume domain and a warmup domain have different expected ranges.
Trend detection runs daily
Every 24 hours, Mash computes week-over-week and 30-day trends for each domain. Sustained decline triggers an alert — even before the score crosses a warning threshold.
Trend direction is the signal. A domain scoring 80 and falling is more dangerous than one scoring 65 and stable.
Operational alerts fire with context
Alerts include a specific recommended action — not just a warning flag. Reduce volume. Rotate inbox provider. Pause sending. Audit authentication.
Alerts route to Slack or email. Each alert links directly to the domain's health timeline.
Signal coverage
24+ signals monitored per domain.
Health scores are not based on a single metric. Mash aggregates dozens of signals into a composite score that reflects the real deliverability risk of each domain.
Alert example
Sustained 7-day score decline detected — Reduce sending volume
This domain has declined 9 points over the past 7 days (83 → 74). Inbox placement rate dropped from 94% to 87%. Bounce rate trending up. No blacklist hits yet — but trajectory indicates risk within 5–10 days at current volume.
7-day score
24+
Signals monitored per domain
7-day
Baseline established on connect
Daily
Trend analysis cadence
<2 min
Time to first alert after decay begins
From operators
Built with agency
operators, not for them.
“We had a domain sitting at 71 health score that looked fine on the surface. Mash flagged the 8-point drop over 10 days before we noticed. Paused it, rotated, and the client never saw reply rates fall.”
Agency founder
Managing 30+ domains across 12 clients
“I used to check tools manually every Monday. Now I get a Slack ping when something actually needs attention. That's operationally what we needed.”
Head of operations
Cold email agency, 50+ domains
“The fleet view is the thing. I can look at 40 domains in one screen and immediately know where my attention should go. No spreadsheet. No gut-feel.”
Agency operator
Multi-client outbound infrastructure
Trusted for:
Pricing
Agency-grade pricing.
No consumer tiers.
Mash is built for agencies — not individuals. There is no free plan. Pricing reflects the operational value of protecting client deliverability at scale.
Mash is in early access. Founding agencies get locked pricing, direct input into the roadmap, and dedicated onboarding. Spots are limited.
Agency
For cold email agencies managing client domains at scale.
Custom
Quoted per agency size
Includes
- Fleet-level health dashboard
- Domain health scoring (daily)
- 30-day trend analysis
- Operational alerts (Slack + email)
- Multi-client view
- SPF / DKIM / DMARC monitoring
- Blacklist tracking (40+ lists)
- Inbox placement signals
- API access
- Onboarding call
Enterprise
For agencies with large fleets, white-label needs, or custom reporting requirements.
Custom
Contact for pricing
Includes
- Everything in Agency
- Unlimited domains
- White-label reporting
- Custom alert thresholds
- Priority support
- Dedicated onboarding
- SLA guarantee
- Custom integrations
Not sure which tier fits? Book a 20-minute scoping call and we'll recommend the right setup for your fleet size.
Early access
Get ahead of
the next domain failure.
Mash is now accepting a limited number of agencies into early access. Founding members get locked pricing and direct input into the product roadmap.
Submit your request
Tell us about your agency, how many domains you manage, and what problems you're trying to solve.
Scoping call (20 min)
We'll confirm fit, walk through the product, and configure the right setup for your fleet.
Onboarded within 48 hours
Connect your domains. Mash begins building baselines immediately.