Campaign & delivery data
Your ESP
Campaign results, delivery events, bounce classifications, complaint rates, and feedback-loop data stream in from any major ESP as they happen.
InboxStack Intelligence
Your inbox rate drops. Brain tells you why before your client asks.
Connect your ESP, Google Postmaster, Microsoft SNDS, and DNS. Brain reads your bounces, complaints and inbox rates, spots the drop the moment it starts, finds the cause, and writes the fix.
Integrations
Four connections. The whole picture.
Brain starts learning your sending pattern the moment you connect. Most teams are fully wired and watching live data in under 20 minutes.
How Gmail scores you
Google Postmaster
Brain pulls the domain and IP scores Gmail gives you, spam-rate trends, delivery errors, and SPF, DKIM and DMARC pass rates straight from Google Postmaster Tools.
How Outlook scores you
Microsoft SNDS
Smart Network Data Services tells Brain how Outlook rates each of your sending IPs, which ones hit spam traps, and where complaints come from.
SPF, DKIM, DMARC
DNS & DMARC
Brain re-checks your SPF, DKIM, DMARC, BIMI, and MX records around the clock, and flags a broken or misaligned record before Gmail starts blocking your sends.
Data Brain works with
Bounces and complaints in. A diagnosis out.
Brain runs on the numbers your ESP and mailbox providers already report. The more sources you connect, the sharper the diagnosis.
ESP campaign metrics
- Delivery and inbox rates by campaign
- Hard and soft bounce rates
- Feedback-loop complaint rates
- Sending volume and cadence
- ESP-reported delivery errors
How Gmail and Outlook score you
- Gmail domain & IP scores (Postmaster)
- Gmail spam-rate trends
- Outlook SNDS IP status & trap hits
- MBP-level delivery error summaries
- Provider-specific deferral messages
SPF, DKIM, DMARC & DNS
- DMARC policy & alignment reports
- SPF pass/fail records
- DKIM signature validity
- Blocklist presence (50+ lists)
- MX, PTR, and BIMI record status
No subscriber PII — ever.
- No subscriber email addresses
- No contact lists or CRM data
- No personal identifiers
- Delivery & inbox data only
How Brain thinks
A diagnosis, built in six layers.
Brain isn't a single algorithm. Your bounce, complaint and inbox data flows through six layers — each one feeds the next.
Layer 01
Data collection
Pulls data from every connected source into one time-ordered event stream. Every data point is timestamped and tied to a sending domain.
Layer 02
Anomaly detection
Compares your stream against a baseline learned from your own sending pattern. A drop gets scored and classified before anyone is paged — no blind alerts.
Layer 03
Finding the cause
When several things go wrong at once, Brain traces which event caused which, and separates the symptoms from the cause.
Layer 04
Pattern recognition
Every incident is matched against a growing library of known failure signatures. Brain tells you whether this is something new — or a pattern it has resolved before.
Layer 05
Writing the fix
From the cause and the pattern match, Brain writes a fix sequence for your own setup — not generic advice. Every step is ranked by impact.
Layer 06
Outcome learning
Brain watches how your inbox rate responds after each fix. What works gets reinforced. Every fix makes Brain sharper for your domain — permanently.
Data flow
Data in. Brain in the middle. Fixes out.
Brain reads dozens of data points from your sending stack, runs them through six layers, and hands you the specific actions that move your inbox rate.
- Gmail inbox rate
- Gmail domain reputation
- Gmail spam-rate trend
- Microsoft inbox rate
- SNDS IP reputation
- Microsoft trap hits
- Yahoo inbox rate
- Hard & soft bounces
- Feedback-loop complaints
- Subject-line analysis
- DMARC alignment
- Blocklist checks · 50+
Brain 6 layers
- Anomaly detected
- Severity classified
- Diagnosis engine run
- Cause identified
- Pattern matched
- Hypotheses ranked
- Fix playbook generated
- Slack & PagerDuty alerts
Data in
- Gmail inbox rate
- Gmail domain reputation
- Gmail spam-rate trend
- Microsoft inbox rate
- SNDS IP reputation
- Microsoft trap hits
- Yahoo inbox rate
- Hard & soft bounces
- Feedback-loop complaints
- Subject-line analysis
- DMARC alignment
- Blocklist checks · 50+
Brain · 6 layers
Fixes out
- Anomaly detected
- Severity classified
- Diagnosis engine run
- Cause identified
- Pattern matched
- Hypotheses ranked
- Fix playbook generated
- Slack & PagerDuty alerts
Delivery data, yes.
You stay the controller.
Brain needs your bounce, complaint and inbox numbers to do its job. Where subscriber-level data passes through the Service, we process it strictly as your data processor, under your instructions — see our Privacy Policy for the details.
- Campaign & delivery metrics — yes Inbox rates, bounce rates, complaint rates, and delivery events are exactly what Brain needs to function.
- Subscriber PII — minimized, and only as your processor Where headers or delivery data include subscriber identifiers, we process them solely on your instructions to power your alerts — never to build our own list, train on, or resell.
- Content & link patterns — yes Brain scores subject lines and link patterns — it never reads or stores the content of emails sent to your subscribers.
- GDPR & CCPA aligned, DPA available We act as your data processor for account data that passes through the Service and sign a Data Processing Agreement on request.