Anti-Spoofing & BEC Hardening · India-based, serving worldwide

Stop Attackers Sending Email as Your Company

Business email compromise - CEO fraud, fake invoices, wire fraud - starts with someone spoofing your domain or a lookalike of it. We close that gap end to end: DMARC to enforcement, SPF and DKIM locked down, lookalike domains registered, and continuous monitoring so it stays closed.

Harden My Domain Free Spoof Check First

10+Years in Email Security

500+Clients Worldwide

SafeEnforcement, no broken mail

What Hardening Involves

Six layers that together make your domain a hard target - and keep it that way.

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SPF & DKIM Lockdown

The foundation, first: fix and align SPF and DKIM for every legitimate sender, prune stale or ex-vendor includes, and stay under the 10-lookup limit - so enforcement will not break real mail.

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DMARC to Enforcement

The step that actually stops spoofing: once every sender is aligned, we move you from p=none to quarantine or reject - safely, so nothing legitimate breaks.

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Lookalike & Cousin Domains

Find the domains an attacker would register to impersonate you (character swaps, TLD swaps, homoglyphs) and coordinate defensive registration of the highest-risk ones.

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Inbound BEC Controls

Advise on gateway rules, external-sender warning banners and display-name protections that catch the socially-engineered mail filters miss.

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BIMI (Optional Capstone)

Once you are at enforcement, add your verified logo in the inbox - a visible trust signal that also raises the bar for impersonators.

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Ongoing Monitoring Handoff

Hand off to continuous DMARC monitoring so new senders, drift and spoofing attempts are caught - hardening that stays hard.

The Questions Clients Ask First

"We already have SPF, DKIM and DMARC."

Most domains sit at p=none - monitor-only, which stops nothing. The value is in moving to enforcement without breaking legitimate mail, and that is exactly the risk we are hired to manage.

"Isn't this just our IT team's job?"

Reaching enforcement safely is where in-house attempts stall for months, because getting it wrong blocks real mail. We use DMARC evidence to confirm every sender before we tighten, so it gets done without incident.

"Why does BEC matter so much?"

Business email compromise - CEO fraud, fake invoices, wire fraud - is among the costliest cyber attacks, and it sails through spam filters because it is socially engineered, not spammy. Authentication is the defence.

How We Harden Your Domain

Free Spoof Check

We read your live SPF, DKIM and DMARC posture so you can see your spoofing exposure before committing to anything.

Enforcement Plan

Using DMARC evidence, we map every legitimate sender and plan the safe path from p=none to enforcement.

Harden

Move to enforcement, align SPF/DKIM, register the highest-risk lookalikes, and set inbound BEC controls.

Monitor

Hand off to continuous DMARC monitoring and alerting so it stays closed as your senders change.

Start With a Free Spoof Check

See your current spoofing exposure and get a safe enforcement roadmap - at no cost.

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A free Spoof Check of your current exposure

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A safe DMARC-enforcement roadmap

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A fixed, no-surprise quote

Harden My Domain

Or reach us directly: [email protected] · +91 6361139611

Anti-Spoofing & BEC Hardening - Frequently Asked Questions

What is BEC (business email compromise)?

A class of attack where someone impersonates your domain (or a lookalike of it) to defraud your staff, customers or partners - fake CEO requests, altered invoices, wire-transfer fraud. Strong authentication and lookalike defence are how you stop it.

Will enforcing DMARC break our legitimate email?

Not when it is done right. We use DMARC aggregate evidence to confirm every legitimate sender is aligned before moving to enforcement, so real mail keeps flowing while spoofed mail gets rejected.

Do you register the lookalike domains for us?

We identify the highest-risk lookalike and cousin domains an attacker would use, and coordinate defensive registration - you decide which to secure.

How is this different from the Email Security Assessment?

The assessment diagnoses and grades your exposure; this engagement is the remediation - it closes the gaps and puts ongoing monitoring in place.

Who can help harden our domain against spoofing, and do you work in India?

Postbox Consultancy Services is an India-based email deliverability and security consultancy. We harden domains against spoofing and BEC for businesses in India and worldwide.