TCP123 UK // MICROSOFT 365 & GOOGLE WORKSPACE DIAGNOSTICS

Is Your Business Email Secure?

STOP BUSINESS EMAILS GOING TO SPAM

Many UK businesses have undefended email that lets attackers impersonate them. Get a free security report in 30 seconds.

YOUR DOMAIN:

Free Β· 30 seconds Β· No signup Β· Passive public DNS only

Why Your Business Emails Are Landing in Spam

Every day, a significant share of your business emails silently disappear into spam folders β€” never reaching clients, prospects, or partners. That's invoices, quotes, and relationship-building emails your customers never see.

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The Invisible Problem

Your emails look fine to you β€” but spam filters check hidden technical settings that prove you are who you say you are. Without these, Gmail, Outlook, and Yahoo treat your messages as suspicious.

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The Cost to Your Business

Businesses lose an estimated Β£1,840/month in pipeline from undelivered emails (UK SME average, 2025). Missed invoices. Lost quotes. Clients who never got your reply and went to a competitor.

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What Hackers Exploit

Without proper authentication, criminals can send emails pretending to be your business β€” fake invoices to your clients, phishing emails to your staff. Your brand reputation on the line.

The good news? Our free 30-second scan above tells you exactly where the gaps are β€” and what to do about it.

Clean & Safe
SSL
VirusTotal
GDPR

The 3 Security Checks Every Business Email Needs

Our scan tests three hidden settings that prove your emails are legitimate. Think of them as your email's passport, signature, and security policy.

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Your Sender Passport (SPF)

Tells the world which servers are allowed to send email from your domain. Like an approved staff list at a bank β€” if someone isn't on it, they can't access your account.

Without it: Anyone can send emails pretending to be your business.
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Your Digital Signature (DKIM)

Adds an invisible digital wax seal to every email you send. When the recipient's email provider sees an unbroken seal, it knows the message is genuine and hasn't been tampered with.

Without it: No proof your emails are authentic β€” spam filters can't trust them.
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Your Spam Rulebook (DMARC)

Tells Gmail, Outlook, and Yahoo what to do with suspicious emails claiming to be from you β€” ignore them, quarantine them, or block them entirely. Your email bouncer.

Without it: Fake emails using your brand reach your clients' inboxes unchecked.

Enter your domain above to see your results for all three checks β€” free, instant, no sign-up required.

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πŸ›‘οΈ Serving local businesses across Bracknell, Reading, and Windsor.