Digital Signatures and Encryption for Emails
S/MIME (Secure Multipurpose Internet Mail Extensions) is a standard for public key encryption and signing of MIME data.Through encryption and the use of digital signatures, S/MIME helps to protect users from email-related threats and increase email security.
Digitally signed emails help against spoofing and phishing attacks – the sender’s identity is clearly visible to the recipients to protect them from any fake emails.

S/MIME Email Certificates for Individuals
Certum Email ID Individual
From $12/yr
for a 3-year certificate
S/MIME EMail Certificate
for Individuals- 1 year: $15
- 2 years: $13/yr
- 3 years: $12/yr
- Class 1 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- Issued instantly
- 15 day Refund Policy
Certum EMail ID Business
From $33/yr
for a 3-year certificate
S/MIME EMail Certificate
for Professionals- 1 year: $45
- 2 years: $39/yr
- 3 years: $33/yr
- Class 2 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- Paperwork required
- 15 day Refund Policy
DigiCert S/MIME Basic
From $17/yr
for a 3-year certificate
S/MIME EMail Certificate
for Individuals- 1 year: $19
- 2 years: $18/yr
- 3 years: $17/yr
- Class 1 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- Issued instantly
- 15 day Refund Policy
PersonalSign 1
From $29/yr
for a 3-year certificate
S/MIME EMail Certificate
for Individuals- 1 year: $39
- 2 years: n/a
- 3 years: $29/yr
- Class 1 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- Issued instantly
- 15 day Refund Policy
PersonalSign 2
From $57/yr
for a 3-year certificate
S/MIME EMail Certificate
for Professionals- 1 year: $69
- 2 years: $59/yr
- 3 years: $57/yr
- Class 2 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- Paperwork required
- 15 day Refund Policy
S/MIME Email Certificates for Organizations
Certum EMail ID Business
From $33/yr
for a 3-year certificate
S/MIME EMail Certificate
for Professionals- 1 year: $45
- 2 years: $39/yr
- 3 years: $33/yr
- Class 2 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- Paperwork required
- 15 day Refund Policy
Certum EMail ID Enterprise
From $49/yr
for a 3-year certificate
S/MIME EMail Certificate
for Organizations- 1 year: $59
- 2 years: $55/yr
- 3 years: $49/yr
- Class 3 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- + Company Name
- Paperwork required
- 15 day Refund Policy
PersonalSign 2 Pro
From $89/yr
for a 3-year certificate
S/MIME EMail Certificate
for Organizations- 1 year: $109
- 2 years: $99/yr
- 3 years: $89/yr
- Class 3 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- + Full Business Validation
- Paperwork required
- 15 day Refund Policy
PersonalSign 2 Department
From $249/yr
for a 3-year certificate
S/MIME EMail Certificate
for Organizations- 1 year: $299
- 2 years: $259/yr
- 3 years: $249/yr
- Class 3 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + Department Name (e.g.: “Finance”)
- + Full Business Validation
- Paperwork required
- 15 day Refund Policy