Compare the Top Secure Email Gateway Apps for iPhone as of November 2025

What are Secure Email Gateway Apps for iPhone?

Secure email gateways protect organizations from email-based threats such as phishing, malware, spam, and data breaches. They analyze incoming and outgoing messages to detect suspicious content, malicious attachments, and unauthorized data sharing. These gateways enforce email security policies, filter harmful traffic, and provide encryption to safeguard sensitive communications. Many platforms also integrate with cloud email services like Microsoft 365 and Google Workspace to extend protection across hybrid environments. Ultimately, secure email gateways help maintain compliance, protect confidential information, and ensure safe, reliable business communication. Compare and read user reviews of the best Secure Email Gateway apps for iPhone currently available using the table below. This list is updated regularly.

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    SEPPmail

    SEPPmail

    SEPPmail AG

    Sending and receiving digitally signed and encrypted emails is easier and more convenient than ever before. Thanks to the Secure E-Mail Gateway from SEPPmail with integrated and patented GINA procedure for spontaneous encryption, SMEs and large companies secure their entire e-mail communication at the highest level, with the least effort and simplest handling for sender and recipient. With its comprehensive Secure Email solution, SEPPmail is setting new standards for secure, GDPR-compliant email communication. As one of the world’s leading email encryption and signature solutions, SEPPmail includes all the features to protect the sending of confidential data via email, guarantee the authenticity of the sender and ensure the confidentiality and integrity of the message. Thanks to its modularity, the secure e-mail gateway solution can be configured according to customer-specific requirements and expanded seamlessly.
    Starting Price: 4.5 € per user per month
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