Tools that do the work a search answer cannot.
Analyze live public infrastructure, parse your own message evidence, simulate changes and produce a result specific to the system in front of you.
Diagnose tools
Turn live evidence into a cause and next action.
Mail Failure Doctor
Turn a bounce, NDR or SMTP rejection into a precise diagnosis and a prioritized fix plan.
Open tool →Email Infrastructure Digital Twin
Map the public email control plane of a domain and expose dependencies, weak points and provider fingerprints.
Open tool →MX Record Lookup
Look up MX records in priority order and distinguish explicit mail routing, Null MX and legacy address fallback.
Open tool →SPF Dependency Graph
Resolve SPF recursively, count DNS-triggering mechanisms and reveal the exact path to PermError risk.
Open tool →DMARC Record Checker
Find the DMARC policy that actually applies, validate its core tags and expose multiple-record or RFC 9989 fallback conditions.
Open tool →DMARC DNS Tree Walk Explorer
Trace the bounded DNS Tree Walk that determines DMARC Organizational Domain boundaries under the current standard.
Open tool →SMTP Conversation Analyzer
Parse an SMTP transcript and locate the exact command where delivery failed.
Open tool →DKIM Inspector
Resolve a DKIM selector, follow delegation and inspect the published key instead of guessing from the root domain.
Open tool →BIMI Readiness Analyzer
Evaluate the DNS and DMARC prerequisites that determine whether a domain is structurally ready for BIMI.
Open tool →Email Provider Detector
Identify likely mailbox and sending services from public MX, SPF, DKIM and related DNS fingerprints.
Open tool →Email Dependency Discovery
Combine public email configuration with sanitized endpoint evidence to uncover senders, relay dependencies and migration blockers that MX alone cannot show.
Open tool →Reverse DNS & HELO Auditor
Validate PTR, forward-confirmed reverse DNS and SMTP HELO identity for a public sending IP without connecting to the mail server.
Open tool →One-Click Unsubscribe Validator
Inspect final message headers for the HTTPS one-click target, List-Unsubscribe-Post signal and DKIM coverage required by RFC 8058.
Open tool →Email Infrastructure Conflict Analyzer
Find multiple SPF/DMARC policies, low SPF headroom, mixed mailbox signals and public sender evidence that does not match the services you expect to own.
Open tool →Simulate tools
Model changes before they reach production.
Email DNS Change Simulator
Test a proposed SPF or authentication change before publishing it to production DNS.
Open tool →DMARC Alignment Lab
Evaluate real SPF and DKIM alignment with the RFC 9989 DNS Tree Walk, or model a hypothetical policy before changing it.
Open tool →Provider Policy Simulator
Score a sending profile against major mailbox-provider requirements before a campaign goes out.
Open tool →Email Compliance Compiler
Compile a sending domain and campaign HTML into one evidence-bounded provider-readiness report.
Open tool →Email Migration Risk Simulator
Model the hidden dependencies that can break when moving mailbox providers or changing the outbound mail path.
Open tool →Email DNS Drift Analyzer
Compare before-and-after DNS snapshots and isolate changes to MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT and BIMI.
Open tool →Gmail 2027 Transition Planner
Identify workflows affected by Gmail’s January 2027 removal of third-party web Send as, Gmailify and POP fetching, then build a replacement plan.
Open tool →Forensics tools
Reconstruct what a real message or report contains.
Email Header Forensics
Decode authentication results, Received hops, identity changes and delivery delays from a raw header or .eml file.
Open tool →Email Route Visualizer
Transform Received headers into a readable hop-by-hop delivery path with latency outliers.
Open tool →Email Deliverability Forensics Lab
Inspect a complete .eml message for identity, authentication, delivery route, MIME structure, attachment metadata and visible tracking surfaces.
Open tool →DMARC Aggregate Report Analyzer
Turn DMARC aggregate XML into source-level pass rates, dispositions, policy evidence and prioritized failing senders, including RFC 9990 DMARC 2.0 reports.
Open tool →TLS-RPT Report Analyzer
Decode TLS reporting JSON into session success, failure classes, receiving MX evidence and affected policies.
Open tool →ARC & Forwarding Analyzer
Reconstruct ARC sets, instance continuity and preserved authentication evidence after forwarding or mailing-list transformations.
Open tool →Email Incident Timeline Builder
Reconstruct up to 25 raw messages into a chronological identity timeline and surface the exact transition where sender evidence materially changed.
Open tool →Email Evidence Manifest Builder
Hash a raw email and produce a portable JSON manifest of identity, authentication, transit, MIME and visible-link evidence without loading remote content.
Open tool →Security tools
Inspect identity, transport and brand-abuse signals.
Email Authenticity Receipt
Combine message identity and authentication evidence into a compact authenticity assessment.
Open tool →Lookalike Domain Radar
Generate high-risk visual and typographic domain variants, then test which ones appear mail-enabled.
Open tool →Mail Transport Security Analyzer
Check whether a domain publishes transport-security policy and reporting, then verify the standard MTA-STS policy endpoint when safe to do so.
Open tool →Authorized Sender Inventory
Turn SPF dependencies, discoverable DKIM selectors and provider fingerprints into a readable sender inventory.
Open tool →Email Privacy Scanner
Inspect campaign HTML for visible tracking pixels, external resources, links and privacy-relevant markup before sending.
Open tool →BEC Conversation Hijack Analyzer
Compare two messages in the same business conversation and expose sender, reply-path, signing and domain changes that deserve independent verification.
Open tool →AI Agent Email Permission Graph
Model the blast radius created by an email agent’s read, send, attachment, contact and delegated-tool permissions before granting mailbox access.
Open tool →Agent Mail Red-Team Sandbox
Run an email agent permission model against prompt-injection, external exfiltration, attachment release, mass-send and delegated-tool abuse scenarios.
Open tool →BEC Payment Change Verifier
Compare message identity and business-process verification evidence when an email requests new payment, beneficiary or destination instructions.
Open tool →Developer QA tools
Test campaign and application behavior before release.
HTML Email Preflight
Inspect HTML size, clipping risk, accessibility, tracking, links and email-client compatibility hazards.
Open tool →Email Chaos Lab
Generate realistic SMTP and webhook failure scenarios for transactional-email resilience testing.
Open tool →Semantic Email Regression Test
Compare two email HTML versions for size, accessibility, tracking surface and external-domain regressions.
Open tool →Gmail Clipping Analyzer
Measure HTML source size, safety margin and optimization pressure before Gmail can clip an oversized message.
Open tool →Email Accessibility Auditor
Audit email HTML for missing image alternatives and structural patterns that can reduce readability across clients and assistive technology.
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