ciphermail

Enterprise Email Encryption Gateway & Digital Signing

Encrypt and sign business email across Microsoft 365, SMTP servers and mixed enterprise environments. CipherMail centralizes email encryption and digital signing through one gateway. Support S/MIME, PGP, TLS and encrypted PDF email, automate certificate management and apply consistent security policies across your organization.

S/MIME · PGP · TLS · Encrypted PDF ·
Microsoft 365 · HSM
overview

What is CipherMail?

CipherMail is an enterprise Email Encryption Gateway that centrally manages automated email encryption and digital signing across SMTP-based infrastructure, including Microsoft 365

It supports S/MIME, PGP, TLS and encrypted PDF email, with centrally managed security policies and automatic certificate enrollment and renewal through its built-in Certificate Authority connector.

CipherMail Webmail Messenger provides an alternative secure messaging option for recipients who cannot use S/MIME, PGP or encrypted PDF delivery.

the problem

Secure email shouldn't depend on every recipient using the same technology.

Organizations exchange sensitive information across different email platforms, encryption standards and external partners.

But when recipients use incompatible encryption technologies, certificates require manual management and security policies vary across systems, protecting email becomes increasingly complex.

why chiphermail

Why CipherMail for Enterprise Email Encryption?

CipherMail simplifies email security by bringing multiple encryption methods, digital signing, certificate automation and centralized policy management into one gateway.

Rather than replacing your existing email infrastructure, CipherMail integrates with your environment to help secure business communication across different systems and recipients.

01

Multiple encryption standards

Support S/MIME, PGP, TLS and encrypted PDF email.

02

Certificate automation

Automatically issue and renew certificates through the built-in CA connector.

03

Digital signing

Help recipients verify signing identities and detect message modifications.

04

Flexible policies

Configure security rules at gateway, domain and user level.

05

Microsoft 365 integration

Support S/MIME, PGP, TLS and encrypted PDF email.

06

Partner communication

Support S/MIME and PGP domain-to-domain encryption.

07

HSM integration

Support hardware-backed protection forcompatible cryptographic operations.

08

Automated configuration

Use Ansible Playbooks to manage gateway configurations.

ENCRYPTION METHODS

One gateway. Multiple email encryption methods.

Different recipients and organizations use different email encryption technologies.

CipherMail supports multiple encryption methods, helping organizations protect business communication while accommodating different recipient capabilities.

Method Protection Typical use
S/MIME Certificate-based encryption and digital signing Certificate-enabled organizations
PGP Public-key encryption and signing PGP-compatible recipients
TLS SMTP transport encryption Server-to-server email communication
Encrypted PDF Protected PDF content Recipients without S/MIME or PGP using a compatible PDF reader
Webmail Messenger Alternative secure messaging Recipients requiring another secure delivery method
use cases

What can you use CipherMail for?

CipherMail supports enterprise email encryption across different infrastructures, recipient environments and security requirements

Microsoft 365 Email Encryption

Integrate CipherMail Email Encryption Gateway and Webmail Messenger with Microsoft 365 to extend email security while retaining cloud-hosted email services. Support centrally managed encryption policies, digital signing and alternative secure delivery methods.

Secure Business Partner Communication

Use S/MIME and PGP domain-to-domain encryption to protect email communication between compatible business domains.

Automated Email Certificate Management

Reduce manual certificate administration through automatic certificate issuance and renewal using CipherMail's built-in CA connector.

Digital Email Signing

Apply S/MIME or PGP digital signatures to help recipients validate signing identities and detect modifications to signed messages.

Secure Email Delivery for External Recipients

Use encrypted PDF delivery or Webmail Messenger when recipients cannot use standard S/MIME or PGP encryption.

Email Archiving Workflows

CipherMail Gateway can support authorized decryption before email archiving, helping organizations retain accessible message content without relying on historical decryption keys for those archived copies. The archive must still be protected by appropriate security, access and retention controls.

HOW CIPHERMAIL WORKS

How does CipherMail work?

CipherMail integrates with existing SMTP-basedemail infrastructure, including Microsoft 365, to centrally manage emailencryption, digital signing and secure delivery.

Based on configured security policies andrecipient capabilities, the gateway applies S/MIME, PGP, TLS or encrypted PDFdelivery. Its built-in CA connector supports automatic certificate management,while HSM integration provides additional protection for supportedcryptographic operations.

01

Policy-Based Email Encryption

Automatically apply encryption and secure delivery rules based on configured policies and recipient capabilities.

02

Digital Email Signing

Use S/MIME and PGP digital signatures to help recipients verify signing identities and detect message modifications.

03

Automatic Certificate Management

Automate certificate issuance and renewal through CipherMail's built-in CA connector, reducing manual administration.

04

Centralized Policy Control

Configure email security settings at gateway, domain and user level to support consistent encryption and signing policies.

INTEGRATION & AUTOMATION

Integrate email encryption with your existing infrastructure.

CipherMail connects with SMTP-based email systems, including Microsoft 365, and supports certificate automation, HSM integration and centralized configuration management

Microsoft 365 & SMTP

Integrate email encryption and digital signing with Microsoft 365 and existing SMTP-based mail infrastructure.

HSM Integration

Strengthen cryptographic key protection through integration with supported Hardware Security Modules.

Ansible Automation

Automate gateway configuration and manage multiple gateway environments using Ansible Playbooks.

Domain-to-Domain Encryption

Support S/MIME and PGP encryption between compatible business domains.

CIPHERMAIL IN ACTION

Manage email encryption from one central interface.

CipherMail provides a graphical management interface for configuring and administering email encryption, digital signing, certificates and security policies.

Manage users, domains, encryption settings and supported certificate-related operations through a centralized gateway interface.

ciphermail FAQ

Frequently asked questions about CipherMail

What is CipherMail?

CipherMail is an enterprise Email Encryption Gateway that centrally manages email encryption, digital signing and security policies across SMTP-based email infrastructure. It supports S/MIME, PGP, TLS and encrypted PDF email, helping organizations secure business communication across different systems and recipients.

What email encryption standards does CipherMail support?

CipherMail supports S/MIME, PGP, TLS and encrypted PDF email. S/MIME and PGP provide message-level encryption and digital signing, while TLS protects email connections between mail servers. Encrypted PDF delivery provides an alternative for recipients without S/MIME or PGP.

Does CipherMail integrate with Microsoft 365?

Yes. CipherMail Email Encryption Gateway and Webmail Messenger can integrate with Microsoft 365 to extend email encryption and digital signing capabilities. Organizations can retain their cloud-hosted email infrastructure while applying centrally managed email security policies.

Does CipherMail support S/MIME and PGP email encryption?

Yes. CipherMail supports both S/MIME and PGP for email encryption and digital signing. It also supports S/MIME and PGP domain-to-domain encryption, enabling secure communication between compatible business partners.

Can CipherMail automatically issue and renew email certificates?

Yes. CipherMail includes a built-in Certificate Authority (CA) connector that supports automatic certificate issuance and renewal. This reduces manual certificate administration and supports certificate-based email encryption and digital signing.

Can CipherMail send encrypted email to recipients without S/MIME or PGP?

Yes. CipherMail supports encrypted PDF email delivery for recipients without S/MIME or PGP. CipherMail Webmail Messenger provides an additional secure messaging alternative when recipients cannot use these encryption methods.

Does CipherMail support digital email signing?

Yes. CipherMail supports digital email signing using S/MIME and PGP. Digital signatures help recipients verify the sender's signing identity and detect unauthorized modifications to signed messages, supporting email authenticity and integrity.

Can CipherMail integrate with Hardware Security Modules (HSMs)?

Yes. CipherMail supports integration with Hardware Security Modules (HSMs) for supported cryptographic operations. HSM integration provides hardware-backed protection for sensitive cryptographic keys and can strengthen enterprise email encryption security.

Where can CipherMail be deployed?

CipherMail supports deployment as a virtual appliance using VMware or Hyper-V, in supported cloud environments including Microsoft Azure, AWS and DigitalOcean, or through installation packages for supported Linux distributions such as Ubuntu, Debian, Red Hat/CentOS and OpenSUSE. Current platform compatibility should be confirmed for each deployment.

Does CipherMail support automated configuration and centralized security policies?

Yes. CipherMail supports automated gateway configuration using Ansible Playbooks. Security policies can be managed at gateway, domain and user level, helping organizations apply consistent encryption and signing rules across their email infrastructure.

READY TO GET STARTED?

Secure your business email with CipherMail.

Simplify email encryption, automate certificate management and protect sensitive communication across your organization.Discover how CipherMail can integrate with your existing infrastructure and support your email security requirements.