Secure mail utility

SMIME Toolkit: S/MIME Setup

SMIME Toolkit guides users through S/MIME certificate setup for Apple Mail. It supports on-device key generation, CSR creation, and PKCS#12 export for manual installation workflows required by iOS.

SMIME Toolkit official App Store icon

On-device crypto flow

Generate keys locally, create standards-compliant CSRs, and keep private key control with the user.

Deployment-friendly output

Export PKCS#12 identities and CA materials for manual trust and account configuration in Apple Mail environments.

Operator clarity

Use a guided flow for setup steps so users can complete certificate enrollment with fewer support escalations.

S/MIME Enrollment Workflow

1. Generate & request

Create a local keypair and CSR, then submit the request to the issuing certificate endpoint your team controls.

2. Export & install

Export the issued identity as PKCS#12, then complete manual installation in Apple Mail account settings.

On-device keys CSR generation PKCS#12 export

For Teams and Individuals

Personal secure mail

Set up signing and encryption credentials for personal or consultant-managed mail accounts.

Organizational rollout

Support consistent setup steps across departments that rely on S/MIME for compliance and trust requirements.

Privacy policy

Review how SMIME Toolkit processes enrollment data, certificates, and on-device keys.

Read Privacy Policy

Related policies

Get Started

Install SMIME Toolkit from the App Store or open the official product site for rollout information.

Built for S/MIME Rollout

The app is designed for teams and individual users who need clear, auditable certificate enrollment without unnecessary steps.