S/MIME Certificates

SECURE EMAIL ENCRYPTION SOLUTIONS

S/MIME certificates are crucial for secure email communication, providing authentication, data integrity, and confidentiality through advanced encryption technologies. By leveraging a public key infrastructure (PKI), S/MIME enables users to send emails securely, ensuring the sender’s identity is verified and the message remains untouched during transmission. This article explains how S/MIME certificates work, their benefits, and why they are essential for protecting sensitive information in professional communication. Enhance your email security and foster trust between parties with the use of S/MIME certificates.

To obtain this type of SSL/TLS certificate, an organization must confirm details, including the legal company name, location, and domain name ownership. A vetting process must then be completed by a human before the certificate is issued. Sectigo, a leading Certificate Authority (CA), offers both single-domain and multi-domain (UCC / SAN) Extended Validation Certificates.

Personal Email Security (S/MIME)

Used for personal email

£ 12.99

Up to 20% off with multi-year
 

Enables end-to-end encryption of emails

Digitally sign emails to prevent email fraud

Supported by Microsoft Outlook, Apple Mail, and other popular email clients

Enables digitally signing Microsoft Office files (docx, pptx, xlsx etc.)

Validates’ email address only

Server Linux

4.5

Save Time and Money with a

Multi-Year Plan

Email security just got easier. With coverage ranging from 1 to 2 years, Nisse-SSL’s multi-year plans offer instant savings and consistent coverage in a simplified, long-term solution. Nisse-SSL secure email certificates guarantee my best price, locked in for 2 years.

Validation Requirements

Using several sophisticated security features, S/MIME email certificates give users the confidence to trust their digital correspondence and help them avoid many of today’s attacks on email users and enterprise infrastructure. To enable this authentication process, you need to be aware of certain steps when ordering and receiving your Nisse-SSL S/MIME certificate. Learn more about the requirements, prerequisites, and issuance process.

How they work

When a user sends an email using S/MIME, the sender’s email client first creates a unique digital signature. This signature is generated using the sender’s private key, which is part of a public-private key pair. The recipient can verify the signature using the sender’s public key, ensuring that the message has not been tampered with in transit. In addition to signing emails, S/MIME also allows for message encryption. The sender encrypts the contents of the email with the recipient’s public key, making it unreadable to anyone without the corresponding private key. Only the intended recipient can decrypt and read the email. This two-step process of signing and encryption is fundamental to how S/MIME improves email security.