Every year, we celebrate National Email Week as a reminder of just how vital email is for business. Email enables seamless team communication and provides customers with an easy way to connect. However, this convenience makes it a prime target for cyberattacks. Cybercriminals often exploit email systems to steal sensitive data or distribute malware, posing significant risks to businesses.

Consider these key statistics:

In 2025, over 376 billion emails will be sent and received daily.
Nearly 1.2% of all emails sent contain malicious content.
Business email compromise remains one of the most costly cybercrimes, with reported losses reaching $6.3 billion in 2024.

In short, poor email security can put your company’s data, finances, and reputation at risk. The good news is that many of these threats can be effectively mitigated by implementing proactive and practical measures.

How to strengthen your business’s email security

Follow these steps to enhance your company’s email security:

Configure your email systems properly

A poorly configured email system is a goldmine for cybercriminals. Without proper safeguards, your email domain becomes vulnerable to phishing scams, spoofing, and other attacks. Implement protocols such as Sender Policy Framework, DomainKeys Identified Mail, and Domain-based Message Authentication, Reporting, and Conformance to authenticate your emails and make it harder for cybercriminals to impersonate your domain and compromise communications.

Keep your email system up to date

Outdated email servers and software are prime targets for cybercriminals exploiting security flaws to gain unauthorized access to your systems. Regularly updating your email systems equips you with the latest security patches and fixes, closing potential security gaps.

Use advanced email security tools

Investing in robust email security tools can significantly reduce the risk of malicious content infiltrating your inbox. Key tools include:

Spam filters – Effectively block phishing attempts and unwanted emails before they even reach your team.
Secure email gateways – Monitor and analyze incoming and outgoing emails to detect threats such as malware, phishing links, or suspicious activity.
Data loss prevention tools – Scan outgoing emails to prevent accidental exposure of sensitive information, such as credit card details or confidential data.
Endpoint security systems – Protect the devices your employees use to check their emails to prevent cybercriminals from exploiting endpoint vulnerabilities

Encrypt sensitive emails

When your business handles financial, personal, or proprietary information via email, encryption is a must. It ensures messages are scrambled and readable only by the intended recipient, safeguarding your data from prying eyes.

Train your team on email safety

Human error is a leading cause of email-related security breaches, making employee training critical. Empower your team with these best practices:

Avoid opening emails from unknown senders or strange domains. If in doubt, delete or mark them as spam.
Before clicking, hover over links to make sure they lead to legitimate, trusted websites.
Be cautious with attachments. Confirm their authenticity with the sender before opening them.
Scrutinize requests for personal or financial information, especially those with urgent or pressuring language, even if they seem to come from an individual or entity you trust.
Immediately report any suspicious emails to your IT team for further investigation.

Celebrate National Email Week with stronger email security

National Email Week is the perfect opportunity to prioritize protecting your business emails. By integrating these strategies into your IT practices, you create a safer digital environment for your entire team.

Looking to protect your business from email threats? The IT experts at Interplay can help assess and optimize your email security. Get in touch with us today to get started.

National Email Week: How to boost business email security