Every business owner has faced the problem of an email server being hacked or breached at some point. Email accounts are one of the easiest ways to get access to your company’s sensitive data and potentially intimate emails with customers. So, if you’re an email manager, it is extremely important to have a secure email server that can prevent hackers from getting access to your company’s information through your incoming emails.

An Overview of Secure Email Server

Every day, billions of phishing emails flood inboxes, posing a constant threat. However, a single significant change has the potential to significantly raise the bar for scammers and enhance online security.

A Secure Email Server is a server that allows users to send and receive email messages without compromising their security. An SES is one of the most common ways for businesses to communicate with their customers, employees, and other parties.

A Secure Email Server offers a number of benefits, like:

Allows businesses to communicate securely, eliminating the risk of sending sensitive information through insecure channels such as social media or email services.
Provides a platform for companies to send marketing messages and offers tools for tracking responses.
Used by multiple departments within a business so that all employees have access to the same information when needed.

How a Secure Email Server Works

Imagine sending a secret message written on a piece of paper. To keep it private, you wrap the paper with a string—a method called encryption. This string not only hides the message but also ensures that only trusted individuals can unwrap it.

For encryption, algorithms like Secure Sockets Layer (SSL) are commonly used. SSL employs two keys: a public key known to everyone and a private key kept secret. Your private key creates a certificate, like a signature on the wrapping paper. When others receive data encrypted with your public key, they see the certificate, know it’s from you, and can trust the message.

This way, SSL and encryption algorithms secure communication, much like wrapping and signing a secret message for trusted delivery.

Implementing Basic Security Measures for Securing Email Servers

In securing your email server against potential threats, implementing fundamental security measures is paramount. Such as:

Strong Password Policies

Having strong password policies is inevitable for secure email servers:

Password Complexity Requirements: Your password should contain a complex combination of symbols, numbers, upper case, and lowercase letters. This way, your account will have less chance of falling for attacks.
Regular Password Changes: Don’t keep the same password for a long time. Thе morе often you chаngе thе password, thе fеwеr chances you will have to be attackеd by hackеrs.

Two-factor authentication (2FA)

Adding Two-Factor Authеntication (2FA) will add an еxtra layеr of sеcurity beyond passwords. Your account sеcurity is significantly bolstеrеd by rеquiring usеrs to provide a sеcond form of identification, such as a temporary code sеnt to thеir mobilе dеvicе.

Encryption for Data in Transit

Consider the following encryption methods for a secure email server:

TLS (Transport Layer Security): Implement TLS protocols to encrypt data during transmission between servers and clients. This safeguards sensitive information from interception by malicious entities, ensuring the confidentiality and integrity of your email communications.
End-to-End Encryption: Extend encryption to the end-to-end level, ensuring that only the intended recipient can decipher the content. This advanced security measure provides an extra layer of protection, particularly crucial when transmitting sensitive or confidential data via email.

By integrating these basic security measures into your email infrastructure, you create a robust foundation that significantly reduces the risk of unauthorized access and data compromise. These measures collectively contribute to a proactive and resilient email security framework and, eventually, to a secure email server.

Securing Email Server Infrastructure

It is essential to pay attention to the underlying infrastructure if you want to strengthen the foundation of your email security.

Putting a number of preventative measures into practice guarantees a strong defense against possible attacks.

Regular Software Updates and Patch Management

Patching and updating the software on your email server on a regular basis is essential to reducing vulnerabilities. Regular updates improve your server’s general stability and performance in addition to fixing known security vulnerabilities. So, putting in place a strong patch management strategy guarantees that your email infrastructure will continue to withstand changing threats.

Firewall Configuration

To regulate incoming and outgoing network traffic, configure and maintain a strong firewall. A properly configured firewall filters malicious traffic and stops unauthorized access, acting as a barrier between your internal network and external threats. Hеncе, you should rеviеw and updatе firеwall rules frequently to keep up with changes in your nеtwork еnvironmеnt and nеw sеcurity thrеats.

Intrusion Detection and Prevention Systems (IDPS)

Integrate Intrusion Detection and Prеvеntion Systеms (IDPS) to keep an еyе out for hostilе activity when using the network and systеm. These systems offer an extra line of defense against different cyber threats by being able to recognize and react to possible security problems in real time. Hence, you should update and adjust IDPS configurations frequently to maximize threat detection performance that will lead to a secure email server.

Secure Email Gateways (SEG)

Integrate a Secure Email Gateway (SEG) as a frontline defense against email-borne threats. These gateways employ advanced threat detection mechanisms, including antivirus scanning, content filtering, and threat intelligence, to block malicious emails before they reach the end-users. You should maintain the efficacy of your SEG by updating and configuring it on a regular basis to counter evolving email threats.

By addressing these elements of your email server infrastructure, you establish a robust defense mechanism that guards against a spectrum of potential threats.

Final Words

In the end, email security and proper server management are a lot to take in, especially if you need to be better-versed in IT considerations. You don’t need to be an expert, of course—your email provider should have a number of admins ready and willing to help you improve your server’s security. However, it’s still valuable for you to know what steps you can take to make sure that your email server is as secure as possible.

About
Latest Posts

Ahona Rudra

Domain & Email Security Expert at PowerDMARC

Ahona is the Marketing Manager at PowerDMARC, with 5+ years of experience in writing about cybersecurity topics, specializing in domain and email security. Ahona holds a post-graduation degree in Journalism and Communications, solidifying her career in the security sector since 2019.

Securing Your Email Server- A Complete Guide