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Ninety-one percent of cyberattacks begin with an email. Phishing, Business Email Compromise, ransomware delivery, and CEO fraud all arrive in the inbox — and no amount of firewall investment stops a threat that your own users invite in. Infraspine's managed email security service combines enterprise-grade filtering, advanced threat protection, DMARC implementation, encryption, and archiving to stop email-borne threats before they reach your team.
Organisations spend heavily on firewalls, endpoint protection, and network monitoring — and then route the most dangerous content directly into every employee's hands through their inbox. Email is unique as an attack vector because it bypasses almost every other security control: it arrives through an intended communication channel, it is expected and acted upon without suspicion, and it targets the human rather than the technology. No firewall rule stops an employee from clicking a phishing link that arrives in a convincing email from a spoofed supplier.
The financial impact is severe and well-documented. BEC attacks cost organisations more than ransomware in absolute financial terms, with individual fraud incidents running into millions of rupees for Pakistani businesses. Ransomware — delivered overwhelmingly via email — costs organisations in ransom payments, recovery time, and reputational damage. A single successful phishing attack can compromise credentials that give attackers access to your entire Microsoft 365 or Google Workspace environment, including files, contacts, and further email accounts to pivot from.
Email security has become simultaneously more important and more difficult. Attackers now use AI to generate flawless phishing text in any language, purchase lookalike domains days before launching campaigns, and compromise legitimate email accounts to send phishing from trusted addresses that bypass reputation-based filtering. Infraspine deploys the latest generation of AI-powered email security platforms that analyse hundreds of signals beyond simple content matching — sender behaviour, relationship graphs, timing anomalies, and real-time link analysis — to catch the sophisticated attacks that rule-based systems miss entirely.
Email Threat Landscape — Key Statistics
Of cyberattacks begin with a phishing or spear-phishing email
Lost to BEC fraud in a single year (FBI IC3 report)
Phishing emails sent globally every day
Average time before a user clicks a phishing link after receipt
Of breaches involving a human element — email is the entry point
From anti-phishing and BEC protection to DMARC implementation and compliance archiving — complete email security in one managed service.
Phishing and Business Email Compromise (BEC) are responsible for the majority of financial losses from cybercrime globally — and both target the email inbox directly. Modern phishing attacks are not the obvious spelling-error emails of years past; they are precisely crafted, contextually relevant messages that impersonate known contacts, suppliers, and executives, often arriving from legitimately compromised accounts. BEC attacks instruct employees to make fraudulent wire transfers or purchase gift cards on behalf of a spoofed CEO or CFO. Infraspine deploys AI-powered email security platforms that analyse sender behaviour, domain reputation, header anomalies, link destinations, and attachment content to intercept these attacks before they reach the inbox, protecting your staff and your finances.
Spam is more than an annoyance — high volumes of unwanted email reduce staff productivity, clog mail infrastructure, and mask the malicious messages that genuinely matter. An effective spam filtering service should deliver a 99.9% catch rate while keeping false positives low enough that legitimate email is never lost or delayed. Infraspine manages enterprise-grade email filtering platforms that combine IP reputation blacklists, domain authentication checks, content analysis, and machine learning trained on billions of messages to accurately separate legitimate email from spam, graymail, newsletters, and outright malicious content. Filtering policies are tuned per organisation based on your industry and communication patterns to minimise false positives.
Standard email filtering catches known-bad content — spam, known malware hashes, blacklisted senders. Advanced Threat Protection (ATP) goes further, analysing email content and attachments for behaviour and intent rather than relying solely on known signatures. Every attachment is detonated in a sandboxed virtual environment before delivery, observing its behaviour to detect ransomware, trojans, and zero-day exploits that have never been seen before. Every URL in every email is followed and rendered at scan time to detect phishing pages, malicious redirects, and credential harvesting sites. ATP is the control that catches the threats specifically designed to evade traditional filtering — the ones responsible for the most significant breaches.
Email is inherently insecure in transit — without encryption, messages pass through multiple servers and networks where they can be intercepted and read. For organisations that routinely send sensitive information via email — contracts, financial data, medical records, legal correspondence, or personally identifiable information — email encryption is not optional. It is required under GDPR, HIPAA, and many sector-specific regulations. Infraspine implements both opportunistic TLS (encrypting email in transit between mail servers that support it) and policy-based end-to-end encryption for emails containing sensitive content identified by data loss prevention rules. Recipients without encryption capability receive a secure portal link to access the message, requiring no software installation on their end.
SPF, DKIM, and DMARC are the three foundational email authentication standards that prevent attackers from sending email that appears to come from your domain — protecting both your customers and your brand reputation. SPF specifies which mail servers are authorised to send email for your domain. DKIM adds a cryptographic signature to outgoing email that receiving servers can verify. DMARC ties SPF and DKIM together, specifying what receiving servers should do with messages that fail authentication (quarantine or reject), and delivers reports back to you showing who is sending email using your domain. Infraspine implements all three standards correctly, manages the ongoing tuning required as your email infrastructure evolves, and monitors DMARC aggregate reports to catch unauthorised use of your domain.
Email is a business record — and in regulated sectors, organisations are required to retain email communications for defined periods, produce them on demand for legal discovery, and demonstrate that archived email cannot be altered or deleted. Standard mailbox retention in Microsoft 365 or Google Workspace is not sufficient for compliance: it is under the control of administrators who can delete messages, lacks the immutable audit trail required for legal discovery, and provides no independent backup if a ransomware attack encrypts or deletes mailbox data. Infraspine deploys dedicated email archiving platforms that capture every inbound, outbound, and internal message in a tamper-evident, independently searchable archive with configurable retention policies matched to your regulatory obligations and legal hold requirements.
Email Security Platforms We Deploy
Common questions from IT and operations leaders evaluating email security solutions.
Phishing, BEC fraud, ransomware, and spam — Infraspine stops them all at the email gateway. Get a free email security audit today.
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