MAILBOX
S/MIME Mailbox
€25/year · 2 years €45
The email address only, validated in minutes.
- Validation by email
- No name in the certificate
- Start signing now, no paperwork
Email and brand · S/MIME
Proof that the email is yours and arrived as it was sent.
An S/MIME certificate signs every email you send and lets you encrypt those that contain sensitive data. Recipients see the checkmark in Apple Mail, Outlook and Gmail, and the invoice with a swapped IBAN no longer goes unnoticed.
Certificates and prices
Choose by what you want the recipient to see.
All four sign and encrypt in the same way. What changes is the identity confirmed in the certificate. For most companies, Organisation or Sponsored is the right choice.
INDIVIDUAL
S/MIME Individual
€35/year · 2 years €65
Your name, confirmed against an identity document.
- Name and address in the certificate
- Independent professionals
- Also signs Office documents and PDFs
ORGANIZATION
S/MIME Organisation
€45/year · 2 years €85
The company name, for shared addresses.
- info@, billing@, support@
- Company validated in the business register
- Invoices signed in the company's name
SPONSOR
S/MIME Sponsored
€55/year · 2 years €105
The person's name and the company's.
- Every person with their own certificate
- Joiners and leavers handled by us
- Against CEO fraud emails
Excluding VAT, per certificate. Issued by European Certification Authorities trusted by Apple, Microsoft and Google. Many mailboxes: centralised issuance and management, on request.
What DMARC does not do
DMARC protects the domain. S/MIME proves the person and the content.
Lasting proof
It keeps proving after the email is forwarded, printed or archived, years later.
Identifies the signer
The person or the company goes into the certificate, not just the domain.
Encrypts when needed
Medical, legal or financial data readable only by the recipient, in line with the GDPR.
Verify
Received a signed email?
Confirm who signed it, with which certificate, and whether the content was changed after it was sent.
The signed email checker is on smime.pt, our dedicated S/MIME site, with installation guides for Apple Mail, Outlook and Thunderbird (in Portuguese).
Request a quote
Request your S/MIME certificates
Tell us how many mailboxes and which type of certificate. We handle validation and installation.
Prefer to talk? +351 210 205 164
weekdays, 9:00 to 18:00 Lisbon time
By email: support@sooma.com