Using encryption and digital signatures, Secure/Multipurpose Internet Mail Extensions (S/MIME) certificates ensure email security, confidentiality, and integrity. The S/MIME certificate uses the recipient’s public key to encrypt the message and only the intended recipient’s private key can decrypt the message. This allows the sender to be confident that the signed email message will only be read by the intended party, and the receiver to verify the integrity and claimed origin of the message.

It’s crucial for both businesses and individuals to secure email communications and ensure message integrity. Whether you’re an individual, startup, small business, or enterprise, Sectigo offers S/MIME email certificate options that will meet your needs.

Sectigo is a leading S/MIME certificate provider and our secure email certificates are supported by all major mail applications including Microsoft Outlook, Exchange, Apple Mail, popular mobile operating systems, and more.