Best Secure Email Gateway Software: Ranked and Reviewed (2025)

Author: apibit

According to experts, secure email gateways act as a shield for your email network, filtering incoming and outgoing email messages to prevent harmful content from reaching user inboxes. In today’s digital age, where cyber threats are on the rise, it is more important than ever to ensure the security of our email communication.

In this article, I will explore the top-ranked and best secure email gateway software solutions of the year. These solutions have been carefully reviewed and analyzed by experts and offer advanced features to safeguard your emails from phishing attacks, malware, and other email-based threats.

Discover the key features of secure email gateways and how they enhance email security.
Learn about the benefits of integrated cloud email security solutions.
Understand why enterprise email security is crucial for organizations.
Get insights into how email security tools work and the techniques they use to protect your email accounts.
Explore the functionality and top-ranked secure email gateway software solutions, such as Proton Mail, PreVeil, StartMail, Private-Mail, and SecureMyEmail.

If you want to safeguard your email communication and ensure the confidentiality and integrity of your messages, keep reading to find the best secure email gateway software for your needs.

Our Top Picks:

What is a Secure Email Gateway?

A secure email gateway (SEG) is an email security tool designed to safeguard your email network from malicious emails. It employs various techniques, including signature analysis, attachment sandboxing, URL scanning, and machine learning, to identify and remove harmful content before it reaches your corporate mail servers and user inboxes.

SEGs are typically cloud-based and can be implemented as on-premises or hybrid appliances. These gateways play a crucial role in protecting organizations from a wide array of email-based threats, such as phishing attempts, malware, spam, and other malicious emails.

With their advanced filtering capabilities, secure email gateways act as a frontline defense to ensure that only safe and legitimate emails are delivered to your recipients, reducing the risk of data breaches and other security incidents.

A secure email gateway ensures the security of your email communication.

Key Features of Secure Email Gateways

Secure email gateways offer a range of key features to enhance email security. These features work together to ensure comprehensive protection against email threats.

Email Security Gateways

Email security gateways provide protection against harmful email content across all email platforms. They act as a filter, scanning incoming and outgoing emails for malicious attachments, viruses, and spam. By blocking or quarantining these threats, email security gateways ensure that only safe messages reach user inboxes.

Email Filtering

Email filtering is a crucial feature of secure email gateways that allows organizations to establish policies and controls to govern the flow of emails. Administrators can define rules to block or allow specific senders, domains, or email addresses based on pre-defined criteria. This ensures that unwanted or harmful emails are filtered out and not delivered to users.

URL Filtering

URL filtering is another important feature offered by secure email gateways. With URL filtering, suspicious or malicious links embedded within emails are identified and blocked, preventing users from accessing potentially dangerous websites or falling victim to phishing attacks. This helps protect users from unknowingly visiting harmful websites that may steal personal or sensitive information.

Attachment Sandboxing

Attachment sandboxing is a powerful feature that enables secure email gateways to detect and isolate potentially dangerous email attachments. When an email with an attachment is received, the gateway places the attachment in a secure, isolated environment called a sandbox. The file is then analyzed for malicious behavior, such as attempts to modify files or access sensitive system resources. If the attachment is found to be safe, it is delivered to the recipient. If it is determined to be malicious, it is blocked or quarantined.

Integrated Email Security Tools

In addition to the core features of email filtering, URL filtering, and attachment sandboxing, secure email gateways often offer integrated email security tools to further enhance email protection. These tools may include:

Email archiving: Secure storage and indexing of all incoming and outgoing emails for compliance and legal purposes.
Email encryption: The ability to encrypt sensitive emails and attachments to ensure their confidentiality and prevent unauthorized access.
DMARC (Domain-based Message Authentication, Reporting, and Conformance): A protocol that helps prevent email spoofing and enhances email authentication by aligning the “From” address with the domain’s email authentication policy.

By incorporating these tools, secure email gateways offer a comprehensive email security solution that safeguards organizations from a wide range of email threats.

Comparison of Key Features

Feature	Email Security Gateways	Proton Mail	PreVeil	StartMail	Private-Mail	SecureMyEmail
Email Filtering	✔️	✔️	✔️	✔️	✔️	✔️
URL Filtering	✔️	✔️	✔️	✔️	✔️	✔️
Attachment Sandboxing	✔️	✔️	✔️	✔️	✔️	✔️
Email Archiving	✔️	✔️	✔️	✔️	✔️	❌
Email Encryption	✔️	✔️	✔️	✔️	✔️	✔️
DMARC Support	✔️	❌	❌	❌	❌	✔️

Integrated Cloud Email Security Solutions

As organizations face increasingly sophisticated email threats, the need for advanced email security solutions is paramount. Integrated Cloud Email Security (ICES) offers a cloud-native approach to safeguarding email communications, providing enhanced protection against phishing attacks, account compromise, and malicious downloads.

Unlike traditional secure email gateways, ICES solutions seamlessly integrate with cloud email platforms like Microsoft 365 and Google Workspace, leveraging APIs to scan emails for potential threats. By directly integrating with these popular cloud email platforms, ICES solutions can effectively detect and block malicious content, ensuring comprehensive email security.

One of the key advantages of ICES solutions is their ability to address gaps in traditional secure email gateways. While secure email gateways primarily focus on filtering external email communications, ICES solutions can also scan internal email communications. This means that suspicious emails can be automatically removed from all user inboxes, reducing the risk of internal threats spreading within an organization.

Integrated Cloud Email Security solutions provide a seamless and efficient way to protect your business from email-based threats. By integrating directly with cloud email platforms, these solutions offer comprehensive and real-time scanning capabilities, enabling organizations to stay one step ahead of evolving threats.

Benefits of Integrated Cloud Email Security

Implemented correctly, ICES solutions offer several benefits that can significantly enhance email security for organizations:

Real-time Threat Detection: By scanning emails in real-time, ICES solutions can identify and block potential threats before they reach end-users, providing immediate protection against phishing attempts, malware, and other email-based attacks.
Improved Visibility and Control: ICES solutions provide administrators with comprehensive visibility into email traffic, enabling them to monitor and configure security policies to align with organizational requirements.
Seamless Integration: With direct integration with Microsoft 365 and Google Workspace, ICES solutions seamlessly integrate into existing email infrastructures, minimizing disruption and simplifying deployment.
Scalability and Flexibility: Cloud-native architecture ensures that ICES solutions can scale to meet the needs of organizations of all sizes, providing flexibility and adaptability as business requirements evolve.

Overall, Integrated Cloud Email Security solutions offer a powerful and efficient way to protect organizations from email threats. By leveraging cloud-native email security tools alongside or as alternatives to traditional secure email gateways, businesses can ensure the confidentiality, integrity, and availability of their email communications.

Why is Enterprise Email Security Important?

Enterprise email security plays a vital role in safeguarding organizations against a range of email threats, including phishing attacks, malware infections, and data breaches. In today’s digital landscape, phishing attacks have become increasingly prevalent, posing significant risks to businesses of all sizes. Phishing emails deceive users into clicking on malicious links, providing sensitive information, or making unauthorized payments, resulting in severe financial and reputational damages.

Email security tools, such as secure email gateways and cloud-native email security solutions, have evolved to combat these sophisticated threats. These tools utilize advanced techniques like attachment sandboxing, URL filtering, and machine learning to detect and block phishing emails before they reach users’ inboxes. By identifying and neutralizing these threats at the gateway level, organizations can prevent potential security breaches and protect their sensitive data.

Moreover, email security is crucial for organizations to comply with data security regulations, such as the General Data Protection Regulation (GDPR) in the European Union and the California Consumer Privacy Act (CCPA) in the United States. These regulations require businesses to implement measures to protect personal data, including email communications. Failure to comply with these regulations can result in significant financial penalties and damage to an organization’s reputation.

Ensuring email security also helps maintain trust with users, customers, and partners. By implementing robust email security measures, organizations demonstrate their commitment to protecting sensitive information and safeguarding the privacy of their stakeholders. This instills confidence in the organization’s ability to handle confidential data responsibly and can contribute to stronger business relationships.

Overall, enterprise email security is essential in today’s threat landscape to protect against phishing attacks, data breaches, and other email-related threats. By investing in reliable email security tools and adhering to data security regulations, organizations can minimize risks, maintain compliance, and build trust with their stakeholders.

How do Email Security Tools Work?

Email security tools play a crucial role in safeguarding your email accounts and ensuring the protection of sensitive information. These tools utilize a combination of advanced techniques to detect and prevent various threats, such as email encryption, URL scanning, and data leakage protection.

Email encryption is a fundamental feature of email security tools that helps protect the content of your emails from unauthorized access. It converts the text and attachments of your emails into an encrypted format, making it nearly impossible for anyone other than the intended recipient to decipher the message.

URL scanning is another essential functionality of email security tools. It involves scanning the URLs embedded within email messages to identify and block malicious links that can lead to phishing attempts, malware downloads, or other cyber attacks. By proactively scanning these URLs, email security tools can prevent users from accidentally clicking on harmful links that could compromise their security.

Data leakage protection is a critical aspect of email security tools that aims to prevent the unauthorized transmission of sensitive information. These tools monitor outgoing email messages for any potential data leaks or breaches, such as the inadvertent inclusion of confidential data or attachments. If a potential data leakage is detected, the tool can either alert the user or automatically block the message from being sent, ensuring that sensitive information remains secure.

“Email security tools use a combination of email encryption, URL scanning, and data leakage protection to safeguard your email accounts and sensitive information.”

In addition to these features, email security tools often provide warning banners on potentially harmful emails, alerting users to exercise caution before engaging with the email content. They also offer detailed reporting and analysis capabilities, allowing organizations to track and investigate incoming email threats.

By leveraging the power of email security tools, you can enhance the security of your email communication and protect yourself and your organization from the ever-evolving landscape of email-based threats.

With email encryption, URL scanning, and data leakage protection, email security tools ensure that your email communication remains safe, secure, and confidential.

How Does a Secure Email Gateway Work?

Secure email gateways play a crucial role in protecting organizations from email-based threats. Whether they are physical appliances or cloud-based services, they act as the first line of defense for your email network, monitoring incoming and outbound email traffic to ensure the safety of your communication.

Cloud-based secure email gateways (SEGs) have become more popular in recent years, offering convenient and scalable solutions for organizations. By redirecting their mail exchange (MX records) to a cloud-based SEG, organizations can efficiently filter and secure their email communication.

So, how does a secure email gateway actually work? Let’s dive into the techniques employed by these gateways to ensure the safety of your email messages:

Email Content Scanning

One of the primary functions of a secure email gateway is to scan the content of incoming email messages. By analyzing the text and attachments, the gateway can identify potential threats, such as malware or suspicious links. Using advanced algorithms and machine learning, the gateway can quickly assess the safety of each email and take appropriate action.

Domain Reputation Assessment

A secure email gateway also assesses the reputation of the sender’s domain. By checking the sender’s domain against known lists of spammers or malicious actors, the gateway can identify emails that may pose a threat. This helps prevent phishing attempts and other malicious activities from reaching user inboxes.

URL Scanning

Another crucial technique employed by secure email gateways is URL scanning. The gateway examines the links within an email to determine if they lead to potentially dangerous or fraudulent websites. By analyzing the URLs in real-time, the gateway can block or warn users about suspicious links, preventing them from falling victim to phishing attacks or other online scams.

Attachment Sandboxing

Attachments are a common delivery method for malware or viruses. To protect against these threats, secure email gateways utilize attachment sandboxing. This technique involves isolating attachments in a secure environment, away from the user’s system, and executing them in a controlled manner. By observing the behavior of the attachment, the gateway can detect any malicious activity and prevent it from causing harm. This ensures that only safe attachments are delivered to recipients.

Implementing these techniques, secure email gateways work silently in the background, scanning, analyzing, and blocking potential threats before they reach user inboxes. By proactively filtering email content, assessing domain reputation, scanning URLs, and sandboxing attachments, they provide comprehensive protection for your organization’s email communication.

Top Secure Email Gateway Software: Proton Mail

In the realm of secure email gateway software, Proton Mail stands out as a top-ranked choice. It offers a comprehensive solution for users who prioritize end-to-end encrypted email communication and robust email encryption.

Proton Mail’s primary goal is to ensure that emails exchanged between Proton Mail accounts remain fully secure and protected from unauthorized access. By leveraging end-to-end encryption, Proton Mail ensures that only the intended recipients can access and read the email content. This level of encryption provides users with peace of mind, knowing that their sensitive information is safe from prying eyes.

But Proton Mail doesn’t stop there. The software goes beyond just secure email communication, offering additional features to enhance user privacy and security. These include encrypted calendar systems, allowing users to schedule and manage appointments securely.

Furthermore, Proton Mail provides encrypted file storage through Proton Drive, enabling users to store and share files with the confidence that their data is protected. This feature is especially useful for organizations that need to exchange sensitive files securely.

For users seeking an extra layer of privacy and security, Proton Mail offers a paid subscription that includes access to Proton VPN. This virtual private network service enhances online privacy by encrypting internet connections, preventing third parties from monitoring users’ online activities.

Proton Mail’s commitment to privacy and security has earned it a strong reputation in the industry. Its user-friendly interface and robust feature set make it a top choice for those who prioritize the confidentiality and integrity of their email communication.

Proton Mail is a top-ranked secure email gateway software that offers end-to-end encrypted email communication.

Key Features	Description
End-to-End Encryption	Ensures secure communication between Proton Mail accounts.
Encrypted Calendar Systems	Allows users to schedule and manage appointments securely.
Encrypted File Storage (Proton Drive)	Enables secure storage and sharing of files.
Password Management (Proton Pass)	Helps users securely manage their passwords.
Proton VPN Integration	Offers enhanced privacy and security through encrypted internet connections.

Top Secure Email Gateway Software: PreVeil

PreVeil is a highly recommended secure email gateway software that provides powerful encryption for secure email communication. It has received certification from the Department of Defense and offers secure email solutions for businesses and consumers alike. With PreVeil, users can maintain their existing email address while encrypting their email communication, ensuring the privacy and security of their messages.

PreVeil seamlessly integrates with popular email platforms such as Gmail, Outlook, Apple Mail, and the default Mail apps on mobile devices, making it easy to incorporate into existing workflows. This allows users to enjoy the benefits of email encryption without having to switch to a new email provider.

In addition to email encryption, PreVeil also offers 5GB of encrypted storage, providing a secure environment for sensitive files. Users can securely store and access their files, knowing that they are protected by PreVeil’s powerful encryption technology.

“PreVeil offers powerful encryption for email communication, allowing users to maintain their existing email address while keeping their messages secure.”

Furthermore, PreVeil enables secure file sharing between PreVeil users, ensuring that sensitive information can be shared safely and securely. With PreVeil, users have full control over who has access to their shared files, mitigating the risk of unauthorized access or data breaches.

With its focus on powerful encryption and secure communication, PreVeil is a top choice for those seeking robust email security solutions. Whether you are an individual user or a business, PreVeil offers the necessary tools to protect your email communication and sensitive data.

Key Features of PreVeil:

Powerful encryption for secure email communication
Integration with popular email platforms
5GB of encrypted storage for sensitive files
Secure file sharing with other PreVeil users

Experience the peace of mind that comes with PreVeil’s advanced encryption technology. Protect your email communication and sensitive data with PreVeil’s secure email gateway software.

This image visually represents the concept of encrypted storage, highlighting the importance of protecting sensitive files and data.

Top Secure Email Gateway Software: StartMail

When it comes to secure email gateway software that values user privacy, StartMail is a standout choice. With its focus on encrypted email communication and disposable email addresses, StartMail offers a comprehensive solution for users who prioritize both email security and privacy.

StartMail allows users to encrypt their email messages using the PGP (Pretty Good Privacy) protocol. This ensures that their communication remains secure and protected from unauthorized access. Users can also exchange PGP keys with other StartMail users, further enhancing the level of security for their email conversations.

One of the unique features that sets StartMail apart is its ability to create and manage temporary email addresses (DEAs). These DEAs can be used for interactions with untrusted recipients or online services, providing an additional layer of privacy and security.

Ultimately, StartMail empowers users to take control of their email security. By leveraging PGP encryption and disposable email addresses, they can enjoy peace of mind knowing that their sensitive information remains protected.

In summary, StartMail is a top-notch secure email gateway software that offers encrypted email communication, temporary email addresses, and PGP encryption. With StartMail, users can prioritize their privacy without compromising on email security.

Key Features of StartMail

Features	Description
Encrypted Email Communication	StartMail allows users to encrypt their email messages using the PGP protocol, ensuring end-to-end security.
Disposable Email Addresses	Users can create and manage temporary email addresses (DEAs) for added privacy and security.
PGP Key Exchange	StartMail enables users to exchange PGP keys with other StartMail users to establish secure communication.

Top Secure Email Gateway Software: Private-Mail

Private-Mail is a secure email gateway software developed by the same team behind TorGuard VPN. It offers end-to-end encrypted email communication using PGP encryption, ensuring that email content is secure and protected. Private-Mail also provides secure file sharing capabilities, allowing users to encrypt and share files with others.

The software offers different subscription tiers with varying storage limits and additional features like a secure calendar and mail syncing between devices. Private-Mail is a versatile solution for users looking for both email encryption and secure file sharing.

Private-Mail Features	Subscription Tiers
End-to-end encrypted email communication	Basic – 5GB storage
Secure file sharing capabilities	Plus – 10GB storage
Secure calendar	Premium – 25GB storage
Mail syncing between devices	Custom – Custom storage

Top Secure Email Gateway Software: SecureMyEmail

When it comes to email security, SecureMyEmail stands out as a reliable and efficient secure email gateway software. What sets SecureMyEmail apart from other solutions is its ability to encrypt existing email accounts without the hassle of switching to a new email address. This is particularly advantageous for users who have already established email accounts with popular providers such as Gmail, Outlook, Yahoo, and more.

SecureMyEmail utilizes the power of PGP encryption to secure email communication, ensuring that sensitive information remains encrypted and protected from unauthorized access. Users can exchange PGP keys with other SecureMyEmail users, enabling encrypted messaging for enhanced privacy.

One of the major benefits of SecureMyEmail is its seamless integration with existing email accounts. By encrypting their existing email accounts, users can enjoy enhanced email security without disrupting their existing workflows. This makes SecureMyEmail a convenient and user-friendly option for individuals and organizations seeking to strengthen their email security.

SecureMyEmail not only provides robust encryption for email communication but also offers peace of mind by ensuring the confidentiality and integrity of your email content. With SecureMyEmail, you can rest assured that your sensitive information is protected from prying eyes and cyber threats.

By choosing SecureMyEmail as your secure email gateway software, you are taking proactive measures to safeguard your email accounts and protect your privacy.

Pricing and Availability of Secure Email Gateway Software

The pricing and availability of secure email gateway software vary depending on the provider and the features offered. Many providers offer tiered pricing plans, allowing users to choose the level of features and storage that meets their needs. Some providers also offer free versions with limited features, allowing users to try out the software before committing to a paid plan. Additionally, there are open-source options available that provide the entire source code for free but may lack vendor support. Users should consider their budget, requirements, and level of support needed when selecting a secure email gateway software.

When it comes to secure email gateway pricing, it’s important to consider the value you’ll receive from the software. While some providers may offer lower-priced options, they may lack advanced features or necessary support. On the other hand, higher-priced options may offer more robust features and dedicated customer support. Ultimately, striking the right balance between your budget and your email security needs is key.

Choosing a secure email gateway software is an investment in the protection of your sensitive data. It’s important to carefully evaluate the pricing and features to ensure you’re getting the best value for your money.

Software availability is another crucial factor to consider when selecting a secure email gateway. It’s essential to ensure that the software you choose is compatible with your current email platform or infrastructure. Some secure email gateway software offers seamless integration with popular platforms like Microsoft 365 and Google Workspace, making it easier to deploy and manage.

Additionally, free versions of secure email gateway software are available from some providers. These versions typically offer limited functionality but can be an excellent option for those on a tight budget or looking to test the software before making a commitment. Keep in mind that the features and support provided in free versions may be more limited compared to paid versions.

Open-source options deserve consideration as well. Open-source secure email gateway software provides the entire source code for free and allows users to customize and modify it to suit their specific needs. However, it’s important to note that open-source options may lack dedicated vendor support and may require more technical expertise to implement and maintain.

Comparison of Secure Email Gateway Software Pricing:

Software Name	Pricing Model	Features
Proton Mail	Tiered pricing plans	End-to-end encrypted email, encrypted calendar systems, encrypted file storage
PreVeil	Tiered pricing plans	Powerful encryption, integration with popular email platforms, 5GB of encrypted storage
StartMail	Tiered pricing plans	Encrypted email, temporary email addresses, PGP encryption
Private-Mail	Tiered pricing plans	Encrypted email, secure file sharing, PGP encryption
SecureMyEmail	Tiered pricing plans	Email encryption for existing email accounts, PGP encryption

Note: The pricing information provided above is subject to change and may vary based on factors like subscription duration and additional features.

Factors to Consider When Choosing Secure Email Gateway Software

When selecting secure email gateway software, there are several factors that should be taken into account. These considerations are essential to ensure optimal email security, ease of use, and compatibility with your organization’s needs. The key factors to consider are:

Email Security: Assess the level of email security provided by the software. Look for features such as advanced threat detection, real-time anti-malware scanning, phishing protection, and data loss prevention.
Ease of Use and Administration: Evaluate the user-friendliness of the software’s interface and the simplicity of its administrative controls. Consider whether the software offers intuitive configuration options and streamlined management functionalities.
Deployment Options: Determine which deployment option suits your organization. Evaluate the pros and cons of cloud-based, on-premises, and hybrid solutions. Consider factors such as scalability, maintenance requirements, and data sovereignty concerns.
Integration with Existing Email Platforms: Check if the software integrates seamlessly with your current email platforms, such as Microsoft 365 or Google Workspace. Ensure that the software provides robust compatibility and synchronization capabilities.
Scalability: Consider the software’s ability to scale as your organization grows. Look for features like centralized management, user provisioning, and flexible licensing options that can accommodate increasing email traffic and user demands.
Vendor Support: Evaluate the level of support offered by the software vendor. Check for the availability of technical support, documentation resources, and customer service to ensure prompt assistance and quick issue resolution.

In addition to the above factors, it’s essential to assess the software’s compatibility with your current email infrastructure and the level of customization and control it offers. By carefully considering these factors, you can make an informed decision and select the most suitable secure email gateway software for your organization’s needs.

Factors to Consider	Description
Email Security	Assess the level of email security provided by the software, including threat detection, anti-malware scanning, and phishing protection.
Ease of Use and Administration	Evaluate the user-friendliness of the software and the simplicity of its administrative controls.
Deployment Options	Determine which deployment option suits your organization, considering scalability and data sovereignty concerns.
Integration with Existing Email Platforms	Check if the software integrates seamlessly with your current email platforms, such as Microsoft 365 or Google Workspace.
Scalability	Assess the software’s ability to scale as your organization grows.
Vendor Support	Evaluate the level of support offered by the software vendor, including technical support and customer service.

Conclusion

In conclusion, when it comes to choosing the best secure email gateway software, several factors need to be considered. These factors include the email security features, ease of use, deployment options, and pricing. Thankfully, there are several top-ranked software options available, such as Proton Mail, PreVeil, StartMail, Private-Mail, and SecureMyEmail, each offering a range of features and capabilities to meet different user needs.

The best choice will ultimately depend on individual requirements and preferences. Some organizations may prioritize end-to-end encryption and secure communication, while others may value features like encrypted file storage or temporary email addresses. It’s important to carefully evaluate these options before making a decision.

By selecting the best secure email gateway software, organizations can significantly enhance their email security and protect against various threats, such as phishing attacks, malware, and data breaches. These software solutions provide the necessary tools to ensure the confidentiality and integrity of email communication, giving users peace of mind knowing that their sensitive information is secure.

FAQ

What is a Secure Email Gateway?

A secure email gateway (SEG) is an email security tool that filters email messages to prevent harmful content from reaching user inboxes. It protects against phishing, malware, spam, and other email-based attacks.

What are the key features of secure email gateways?

Key features of secure email gateways include protection against harmful email content, admin policies and controls, URL filtering, attachment sandboxing, and integrated email security tools like encryption and email archiving.

What are Integrated Cloud Email Security Solutions (ICES)?

Integrated Cloud Email Security Solutions (ICES) are cloud-native email security tools that scan emails for signs of phishing and other threats. They integrate directly with cloud email platforms like Microsoft 365 and Google Workspace.

Why is enterprise email security important?

Enterprise email security is important to protect against email threats like phishing, malware, and data breaches. It ensures compliance with data security regulations and maintains trust with users, customers, and partners.

How do email security tools work?

Email security tools protect email accounts, content, attachments, and users against malicious activity and breaches. They use techniques like attachment sandboxing, URL scanning, and encryption to detect and prevent harmful email content.

How does a secure email gateway work?

A secure email gateway can be physical or cloud-based and sits in front of the email network. It uses techniques like email content scanning, URL scanning, and attachment sandboxing to determine the safety of incoming email messages.

What is Proton Mail?

Proton Mail is a top-ranked secure email gateway software that offers end-to-end encrypted email communication, additional features like encrypted calendar systems and file storage, and a paid subscription option for enhanced privacy and security.

What is PreVeil?

PreVeil is a highly recommended secure email gateway software that provides powerful encryption for email communication. It allows users to keep their existing email address while encrypting their email communication and offers seamless integration with popular email platforms.

What is StartMail?

StartMail is a secure email gateway software that focuses on protecting user privacy through encrypted email communication and disposable email addresses. Users can encrypt email messages using the PGP protocol and create temporary email addresses for interactions with untrusted recipients.

What is Private-Mail?

Private-Mail is a secure email gateway software developed by the same team behind TorGuard VPN. It offers end-to-end encrypted email communication using PGP encryption and provides secure file sharing capabilities. It offers different subscription tiers with varying storage limits and additional features.

What is SecureMyEmail?

SecureMyEmail is a secure email gateway software that focuses on encrypting existing email accounts without needing to switch to a new email address. It supports popular email providers and uses PGP encryption to secure email communication.

How much does secure email gateway software cost?

The pricing and availability of secure email gateway software vary depending on the provider and the features offered. Many providers offer tiered pricing plans, and some also offer free versions with limited features. Open-source options are available as well.

What factors should be considered when choosing secure email gateway software?

Factors to consider when choosing secure email gateway software include email security features, ease of use and administration, deployment options, integration with existing email platforms, scalability, vendor support, compatibility with current email infrastructure, and level of customization and control.