Prove every email is genuinely from your organization
Organization Validation S/MIME (OV S/MIME) puts your verified organization’s name into every digital signature — so customers, suppliers, and partners know that emails from your support@, billing@, or admin@ address genuinely came from your company and haven’t been tampered with.
Your organization’s name — verified and signed into every email
OV S/MIME validates your organization’s identity and embeds your verified organization name into every digital signature. SSL.com confirms your organization’s legal registration before issuing the certificate — the same level of business validation used in OV SSL/TLS certificates.
OV S/MIME is particularly well-suited for functional email addresses — support@, billing@, hr@, legal@, admin@ — where the email clearly represents your organization rather than a named individual. It prevents corporate address impersonation and gives recipients confidence that messages from these addresses are genuine.
Why organizations use OV S/MIME
OV S/MIME is the right choice for…
- ✓ Customer-facing functional addresses — support@, info@, service@, help@ — where customers need to know the email is genuinely from your company
- ✓ Finance and billing addresses — billing@, accounts@, invoices@ — where recipients need certainty before acting on payment instructions
- ✓ HR and legal departments — signing employment contracts, legal notices, and compliance communications
- ✓ Automated and transactional email — system-generated notifications, onboarding emails, and alerts sent from no-reply@ or notifications@
- ✓ Any organizational address where the email represents the company rather than a specific named individual
Configure & Buy OV S/MIME
Select Certificate Duration
From purchase to organizationally verified email — 4 steps
Works with the email clients and systems you already use
| Email client | Signing | Encryption | Notes |
|---|---|---|---|
| Microsoft Outlook | ✓ | ✓ | Native S/MIME support — no plugin required |
| Apple Mail | ✓ | ✓ | Native support on macOS and iOS |
| Mozilla Thunderbird | ✓ | ✓ | Native support |
| Google Workspace Gmail | ✓ | ✓ | Requires Google Workspace Business or Enterprise plan |
| Outlook on the Web | ✓ | ✓ | Supported in Microsoft 365 environments |
| Exchange / mail server | ✓ | ✓ | Can be deployed at the mail gateway level for organization-wide signing |
Issued by an audited, compliant CA
CA/B Forum S/MIME Baseline Requirements
OV 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
Organization identity validation
Legal organization name and registration verified prior to certificate issuance
Frequently asked questions
Ready to prove every email is genuinely from your organization?
Also in Email Security
Basic S/MIME
Personal email privacy — no name validation needed
IV S/MIME — Individual Validated
Professionals wanting their verified name in the signature
Sponsor S/MIME — IV + OV
Named individuals acting on behalf of the organization — maximum trust
