Sign and encrypt your personal email — no identity verification required

Basic S/MIME gives you cryptographic email signing and end-to-end encryption tied to your email address alone. No name validation, no business documentation — just private, tamper-evident email for anyone who takes their communications seriously.

Email signing and encryption — for your address

Basic S/MIME is the entry-level certificate in SSL.com’s S/MIME range. It validates that a certificate is bound to a specific email address — without requiring any additional identifying information about the person behind it. It enables two core capabilities:

Digital signing — attaches a tamper-evident signature to every outgoing email, so recipients can verify the message came from your address and hasn’t been modified since you sent it.

Encryption — encrypts email content end-to-end so only the intended recipient can read it, even if intercepted in transit.

Basic S/MIME is the right choice when privacy and message integrity matter, but publishing your personal name or organizational identity in the certificate is not required or desired.

Why people use Basic S/MIME

End-to-end encryption

Email content is encrypted before it leaves your device and can only be decrypted by the intended recipient

Tamper-evident digital signing

Every outgoing message carries a cryptographic signature — if the email is modified in transit, the signature breaks

Address-level authentication

Proves the email came from your specific address — not just a domain — without exposing personal or organizational details

Fast issuance

No identity documentation required beyond control of the email address — typically issued within minutes

Privacy-first

No name or organization data embedded in the certificate — ideal for personal use or privacy-sensitive communications

Basic S/MIME is the right choice when…

  • ✓ You need to sign and encrypt personal email without disclosing your name or employer
  • ✓ You want to secure email for a generic or shared address where individual identity is not relevant
  • ✓ You are evaluating S/MIME before stepping up to a higher validation level
  • ✓ You need a low-friction, fast-issuance certificate with no documentation overhead
Considering a step up? If you want your verified name in the digital signature, consider IV S/MIME. For organization validation, see OV S/MIME or Sponsor S/MIME.

Configure & Buy Basic S/MIME

Select Certificate Duration

From purchase to signed & encrypted email — 4 steps

1
Purchase
Select your Basic S/MIME duration and complete your order.
2
Email validation
SSL.com sends a confirmation to your email address. Click the link to prove you control it.
3
Certificate issued
Your certificate is generated and delivered. Install it in your email client (Outlook, Apple Mail, Thunderbird).
4
Sign & encrypt
Your email client automatically signs outgoing messages. Share your public key with contacts to enable encryption.

Works with the email clients you already use

Email clientSigningEncryptionNotes
Microsoft OutlookNative S/MIME support — no plugin required
Apple MailNative support on macOS and iOS
Mozilla ThunderbirdNative support
Google Workspace GmailRequires Google Workspace Business or Enterprise plan
Outlook on the WebSupported in Microsoft 365 environments

Issued by an audited, compliant CA

CA/B Forum S/MIME Baseline Requirements

Basic S/MIME issued under the CA/B Forum S/MIME BR — the global standard for S/MIME certificate issuance

WebTrust for S/MIME BR (BDO)

SSL.com is audited annually by BDO under the WebTrust for S/MIME Baseline Requirements program

RFC 5750 / S/MIME v3.2

Certificates conform to the S/MIME standard for secure email

Frequently asked questions

Digital signing proves the email came from you and hasn’t been tampered with — but the content is still readable. Encryption scrambles the content so only the recipient can read it. Basic S/MIME supports both independently or together.
Yes — for encryption, both parties need S/MIME certificates and must have exchanged public keys (usually by first sending each other a signed email). Signing alone works without the recipient having a certificate.
No — each S/MIME certificate is bound to a single email address. Each address requires its own certificate.
When you send a digitally signed email, your public key is automatically attached. Recipients who receive a signed email from you can save your key and use it to send you encrypted replies.
Basic S/MIME validates only your email address. IV S/MIME additionally validates your first and last name, which appears in the digital signature — adding a layer of personal identity assurance for professional communications.
Basic S/MIME typically issues within minutes of email address validation — no documentation review required.

Ready to sign and encrypt your email?

Basic S/MIME — fast issuance, no documentation required. Get started in minutes.

Also in Email Security

IV S/MIME — Individual Validated

Professionals wanting their verified name in the signature

OV S/MIME — Organization Validated

Organizations securing functional addresses (support@, billing@)

Sponsor S/MIME — IV + OV

Executives and key personnel — maximum trust

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