Your best campaign is dying in spam folders. You'd never know.
VanceSentinental checks the DNS-level health of your sending domains on a set schedule — authentication, blacklists, config drift — and reports back the moment something breaks, in plain English, before it costs you a quarter of pipeline. Delivered as reports and fixes, not a dashboard you have to trust to stay up.
Three stages, none of them touch your inbox.
Connect
Point VanceSentinental at your sending domain — DNS records only. No mailbox access, no email content ever read, live in under ten minutes.
Monitor
VanceSentinental checks SPF, DKIM, and DMARC alignment, scans your sending IPs and domains against major RBL blacklists, and watches for silent config drift — continuously, on a schedule, with no one at the keyboard.
Alert
The moment something breaks, you get a plain-English alert — what failed, why it matters, and exactly what to change — instead of finding out three weeks later from a quarter of missing replies.
Type a domain. We'll actually check it.
This runs a real SPF, DMARC, and MX lookup against public DNS the moment you hit enter — over your own browser's connection, nothing routed through our servers, nothing logged anywhere. Type a real domain (yours, a competitor's, anything) and you'll get its actual current records. DKIM and blacklist status need more than DNS alone can answer — your mail provider's DKIM selector, and your server's actual sending IP — so those two stay part of the full paid audit rather than being faked here.
Free tools that live right in the guides.
Same rule as above — everything below runs entirely in your browser. Paste your own record in, or build one from scratch, and see it for real.
SPF lookup counter
Paste your raw SPF record and count every include/a/mx/ptr/exists mechanism against the RFC 7208 limit of 10 — with a full breakdown of what's using up your lookups.
Try the SPF counter →SPF record builder
Tick the sending tools you actually use — Google Workspace, SendGrid, HubSpot, and a dozen others — and get a correctly-ordered SPF record built for you, ready to paste into DNS.
Try the SPF builder →DMARC policy simulator
Click between p=none, p=quarantine, and p=reject and watch exactly where a spoofed email actually ends up under each one.
Try the DMARC simulator →DMARC record generator
Pick a policy, an enforcement percentage, and where reports should land — get the exact TXT record to paste into DNS, no guesswork on syntax.
Try the DMARC generator →BIMI readiness checker
Real DMARC lookup against your domain — tells you instantly whether you meet the one prerequisite that determines whether a logo can ever show up next to your emails.
Check BIMI readiness →How exposed is your sending domain, really?
Six questions, answered from what you already know — this isn't a DNS lookup like the tool above, it's a self-assessment, scored live as you click. Be honest with "not sure" where it applies; that's a real signal too.
We monitor our own sending domains on the exact same checks.
VanceSentinental reads DNS records and public blacklist data — nothing else. It never touches the content of your email, never needs mailbox or inbox access, and never sees a single message you send. Checks run on schedule in the background; what reaches you is a written report and an alert email, not a portal you have to trust to stay online.
See a sample reportScheduled reports, not a live dashboard to babysit.
Every tier below runs the same checks on a fixed schedule and delivers a written report plus an alert email when something breaks — there's no portal you have to log into or trust to stay online. Annual billing is available on every tier at roughly two months free.
Priced in USD — standard for B2B software sold internationally. Paid by wire or card to an Indian account and converted to INR automatically on arrival.
One domain, checked and reported
For a single sending domain that just needs someone watching it on a schedule and telling you the moment something's wrong.
- 1 sending domain checked every 6 hours
- SPF, DKIM, DMARC + blacklist checks
- Email alert the same day something fails
- Weekly written status report
Most sending teams
For teams running several sending domains or tools — marketing platform, CRM, transactional sender — who want one report covering all of them.
- Up to 5 sending domains checked on schedule
- Everything in Starter
- Config drift detection + change history, flagged in your report
- Priority alert triage — investigated and explained same day
Multiple clients or brands, one subscription
For agencies and multi-brand companies managing sending domains across several clients — reports are broken out per client so you can hand over their numbers without exposing anyone else's.
- Up to 15 sending domains across multiple brands or clients
- Everything in Growth
- White-labeled report exports, per client or brand
- Blacklist Emergency Delisting SLA included, no extra charge
- Monthly rollup summary across your whole portfolio
Multiple domains, white-label, priority turnaround
For larger sending footprints and procurement-heavy buyers. Scoped to your domain count and reporting requirements, with a written data-handling overview provided on request.
- 20+ sending domains, scaled as needed
- Everything in Agency, including the delisting SLA
- Custom reporting cadence and format
- Priority response commitment + strategy call
We fix it and manage it — not just report on it.
Every product below used to include a few pure diagnostic reports — a domain scan, a reputation history, a lookalike-domain check. We cut them: Cloudflare's own free DMARC Management tool, and half a dozen other vendors, already give away that exact deliverable. What's left is work nobody automates or gives away — the change actually made in your DNS, the policy actually managed over weeks, the certificate paperwork actually handled.
Fix it, hands-on
We make the changes directly in your own DNS, or manage the policy over timeHardening Sprint
The actual fix, not a report describing the problem. We review your setup, make the changes directly in your own DNS, verify each one, and hand you a before/after report — you keep full ownership of the records throughout.
- Starts with a technical review — not a repeat of a free checker
- We fix what's broken directly in your DNS
- Before/after verification report
- Optional hand-off onto ongoing monitoring after
DMARC Enforcement-as-a-Service
Not a one-time look at your DMARC report. We read your aggregate reports on a schedule, track every sending source's alignment over time, and raise your policy toward full enforcement in stages — a person approves every step.
- Every sending source identified and tracked over time
- Staged policy increases only when the data says it's safe
- 4–8 weeks to full enforcement, then ongoing management
- Human-reviewed and approved at every step, not automated
Email Infrastructure Setup
For a brand-new domain or product launch with no sending history yet. We configure SPF, DKIM, and a phased DMARC policy correctly from day one, instead of retrofitting it after something breaks.
- For new domains or new product launches
- SPF, DKIM, and DMARC configured from scratch
- Verified working before we consider it done
- Delivered with a plain-English setup summary
BIMI-as-a-Service
Every free BIMI generator stops at the DNS record. We handle the part that's actually hard: the Verified Mark Certificate paperwork with the issuing authority, the compliant logo file, and rendering QA across Gmail, Yahoo, and Apple Mail.
- Confirms DMARC enforcement prerequisite is met
- We coordinate the VMC application directly with the CA
- Compliant SVG logo file prepared to spec
- Rendering QA across Gmail, Yahoo, and Apple Mail
MTA-STS & TLS Reporting Setup
SPF/DKIM/DMARC stop someone from spoofing you — this stops someone from intercepting mail in transit. Free generators write the record in thirty seconds; deploying enforce mode without breaking legitimate mail is what we actually manage.
- MTA-STS DNS record and policy file, staged rollout
- TLS-RPT enabled for delivery visibility
- Exact policy file provided for your own web server
- Verified enforcing before we consider it done
Blacklist Emergency Delisting
If it's a simple first-time listing, the operator's own free removal form probably works — use it. This is for repeat or severe listings that need real root-cause work, backed by a stated response time, not a queued ticket.
- Confirms every blacklist you're actually on
- Root-cause diagnosis for repeat or severe listings
- Files delisting requests on your behalf
- SLA: attempted within 4 hrs, escalated within 24 hrs
Coming soon: infrastructure, not reports
In development — not yet sold or billedContinuous Impersonation Monitoring
Free tools give away a one-time lookalike-domain scan. This is the always-on version: daily monitoring of new domain registrations and certificate-transparency logs, with a real-time alert the moment a new lookalike appears.
- Daily cert-transparency + registration monitoring
- Real-time alert on a new confusable domain
- Ranked by how convincing each lookalike actually is
- In development — reach out for early access
White-Label Monitoring Platform
A multi-tenant version of our monitoring engine that agencies and freelance consultants can brand as their own and resell to their clients — one dashboard instead of a subscription per client.
- One dashboard covering every client domain you manage
- White-labeled under your own brand
- Same SPF/DKIM/DMARC/blacklist monitoring as Starter–Enterprise
- Running as a hands-on pilot with 2–3 agency partners
What's promised, and what honestly can't be.
No one can honestly guarantee your inbox placement rate or how many replies you get — anyone who does is selling you something they can't back up. Here's what we actually commit to, in writing, on every engagement.
Fixed price, quoted upfront
Every one-time engagement's price is quoted before work starts and stays fixed for the scope agreed — no surprise line items after the fact.
Nothing changed without sign-off
Hardening Sprints and DMARC rollouts get your explicit approval before any DNS record is touched — you keep full ownership and visibility the whole time.
Written before/after verification
Every fix-and-verify engagement ends with a written report showing the exact state before and after — not just a claim that it's handled.
Delivered on the timeline quoted
If something's going to run past the estimate you were given, you hear about it before the deadline passes — not after.
One report type available today. Two more on the way.
A small, deliberately small, set of report-based products for the parts of B2B revenue infrastructure that quietly break and nobody notices until it costs a deal. Every one of them is a scheduled check delivered as a report — none of them are a live system you have to depend on.
Deliverability
SPF, DKIM, DMARC, and blacklist checks for your sending domains, run on schedule and delivered as reports — the subscriptions and engagements on this page, available today.
Try a live checkRadar
A weekly delivered digest tracking your competitors' websites, pricing pages, and job postings, and surfacing press or funding mentions — a report in your inbox, not a live tracker to check yourself.
Get notifiedVerified
A one-time, annually-renewed audit that earns a "Verified Sender" badge for your site and outreach — a static asset you host yourself, not a live service we run for you — proof you can point to instead of a claim buyers have to take on faith.
Get notifiedBuilt the way security-conscious buyers expect.
DNS-only access
VanceSentinental reads public DNS and blacklist records. It never requests mailbox, inbox, or send-on-behalf-of access.
Zero AI in the check path
Every check is a deterministic DNS or blacklist lookup — no model, no hallucination risk, fully auditable logic end to end.
No email content, ever
Nothing you send is read, stored, or scanned. VanceSentinental watches infrastructure health, not message contents.
Every engagement, human-reviewed
Hardening Sprints and Enterprise onboarding are scoped and signed off by our team before any work starts — no black box.
Need this in writing for procurement?
Request our data-handling and security overview — we'll send it directly to you.
The people accountable for every check we run.
VanceSentinental is a single-founder operation, on purpose — every check, every report, and every reply comes from the same person, not a support queue.
Aviraj Kamath
Questions worth answering upfront.
Does VanceSentinental ever read my email content?
Where is VanceSentinental based?
What actually breaks deliverability, and how does VanceSentinental catch it?
My replies already dropped off — can VanceSentinental fix that?
How fast can I get set up?
What's Radar and Verified — do I need to buy those too?
We need Enterprise pricing and a security overview before we can move forward — how does that work?
Talk to the team.
Enterprise pricing, a security overview for procurement, a Hardening Sprint, or a partnership inquiry — one form reaches us directly.
Find out if your domains are already leaking pipeline.
15 minutes — we'll run your sending domains through VanceSentinental's checks and show you exactly what it finds, then send you the write-up.