Belgium

A Free Address Undermines a Credible Business

A client, supplier, or bank that receives an invoice from a free personal mailbox reads it as unpolished, not professional. In Belgium's business environment, a domain-matched email address is one of the simplest signals that a company is properly established and worth trusting. Professional email is a small investment that pays back in credibility every time a message is opened.

Account Compromise Is Belgium's Top Reported Cyber Threat

The Centre for Cybersecurity Belgium (CCB) recorded 635 incident notifications in 2025, up nearly 70% from 2024, and identified account compromise — driven largely by credential theft and phishing — as the most frequently reported threat, with 144 cases, double the previous year. Belgians forwarded nearly 10 million suspicious messages to the CCB's phishing reporting address in 2025 alone, and the CCB's 2025 threat report specifically flagged a rise in CEO fraud schemes where attackers combine a compromised business email account with follow-up phone or WhatsApp pressure to bypass normal payment verification.

Unverified Domains Get Sent to Spam or Blocked

Mailbox providers score every sending domain before a message reaches an inbox. A domain without SPF, DKIM, and DMARC authentication looks unverified to these filters and gets routed to spam or blocked outright, regardless of how legitimate the sender is. Every quote, invoice, or follow-up lost this way is business the company never knew it lost.

Belgian and EU Data Protection Rules Apply to Business Email

As an EU member state, Belgium applies the GDPR alongside national implementing legislation, enforced by the Autorité de protection des données / Gegevensbeschermingsautoriteit (APD/GBA). These rules require organizations to implement appropriate technical and organizational security measures for personal data and to report qualifying breaches without undue delay. Belgium's new cybersecurity law implementing NIS2 has also entered into force, extending stricter security and incident-reporting obligations to a much wider range of companies — obligations that directly touch business email, where customer records, contracts, and payment instructions are exchanged daily.

What to Do Right Now

Every week spent on an unverified or personal mailbox adds to the risk of account compromise, blocked mail, and CEO fraud. Belgian businesses should move to a verified company domain, implement SPF, DKIM, and DMARC authentication, and require phone verification for any payment or bank-detail change requested by email. UCN Mail is built to make that shift straightforward — professional email with the authentication, security, and reliability a Belgian business needs to be trusted and reach the inbox.

The PDF-by-Email Invoice Is No Longer Legal
Since January 1, 2026, Belgium requires nearly all VAT-registered businesses to exchange structured e-invoices via the Peppol network for domestic B2B transactions — a plain PDF sent by email no longer satisfies the legal requirement, with fines starting at €1,500 for non-compliance. Email still carries everything around that structured invoice — quotes, confirmations, client correspondence — so a secure, professional inbox remains the backbone of the relationship even as the invoice itself moves through Peppol.

AI-Generated CEO Fraud Hit Belgium 250 Times in a Single Year
Belgium's Centre for Cybersecurity recorded 250 cases of AI-assisted "CEO fraud" in 2025, part of a broader wave in which 70% of Belgian businesses faced at least one cyberattack attempt, and 90% of incidents started with a simple phishing email. Attackers now routinely generate flawless phishing emails in both French and Dutch and clone executives' voices for deepfake calls — a properly authenticated business domain won't stop a deepfake call, but it makes the underlying email impersonation much harder to pull off.

The Average Attack Now Costs a Belgian SME €42,000
The average cost of a cyberattack on a Belgian SME rose from €28,000 in 2023 to €42,000 in 2025, a 50% jump in two years, while SMEs take an average of 68 days to patch a critical vulnerability against attackers who exploit it within 14. For a lean team without dedicated IT staff, a properly secured email setup is one of the simplest ways to close off the most common entry point.

A Free Webmail Address Doesn't Match a Bilingual Business
Many small Belgian businesses default to a personal Gmail or Skynet address, which can look informal to a client or partner comparing quotes across language regions. A domain-matched address — [email protected] or [email protected] — signals a business built to operate professionally across Belgium's markets.

Getting Started: What You'll Need
Have your domain name ready (or one to register), a short list of who needs a mailbox, and about 15–20 minutes to update your domain's DNS records with your registrar. UCN Mail handles domain verification and authentication setup, so your client correspondence lands reliably — and is far harder for a fraudster to convincingly spoof.