Sign Emails Instantly

Fast and Easy way to secure your emails and documents.


Comodo Personal Authentication Certificate

Encrypt Emails and Documents

Personal Authentication is an inexpensive digital security certificate that secures your business emails and documents. It lets you digitally sign your essential office documents & email communications, and it also offers two-factor authentication for better security for sharing documents over the network. In addition, it allows encrypting your emails, so only authorized users can access them.

Secure Your Email & Document Using Branded Personal Authentication Certificate

30 Days Money Back 30 Days Money Back
Powerful Email Security Powerful Email Security
Two-Factor Authentication Two-Factor
Digital Email Encryption Digital Email

Strong Encryption to assure Receiver that Email is Genuine

Provided with a strong 2048-bit RSA signature key and identity verification, the Personal Authentication certificate is trusted by more than 99% of Mobile Devices, Operating Systems, Servers, and other platforms. It offers a quick security solution for signing and securing digital documents and emails that helps build the trust and confidence of the user.

It’s issued with two-factor authentication, enabling a feature that asks you to enter a password whenever you sign an email. Hence, it gives surety to users that no unauthorized person has signed the email nor intercepted or altered it over the network.

Compatibility of Personal Authentication Certificate

It offers good compatibility with most of all the popular email clients and mobile devices:

  • Email Servers: Microsoft Outlook 99+, Microsoft Entourage (OS/X), Qualcomm Eudora 6.2+, Netscape Communicator 4.51+, Lotus Notes (6+), Mozilla Thunderbird 1.0+ & more.
  • Server Operating System: UNIX, Linux, Novell, Solaris, Windows Server 2008, 2003, 2000.
  • Web Servers: WebLogic, Apache, IBM HTTP, Tomcat, Cobalt, and Microsoft IIS 7 & IIS 6.
  • Client OS: Windows XP, 7, Vista, 2000, Mac OSX, Snow Leopard, Linux Client OS
SMIME Email Signing – Video

Comodo Personal Authentication Features

  • Secures email communication of your company/organization.
  • Signing important digital documents of the office with your unique digital signature.
  • 2FA (Two Factor Authentication) for security reasons.
  • Multi-Level Validation.
  • Compatible with exchange servers and mail gateways.
  • Compatible with platforms like MS Office, Open Office, and VBA Macros.
  • Easy validation process.
  • A digital signature shows the user's identity, representing message content ownership while proving authenticity.

Comodo Personal Authentication Certificate Benefits

Digital Signing That Helps Verifying Your IdentityDigital Signing That Helps Verifying Your Identity

A personal Authentication certificate allows you to sign your emails digitally. Therefore, once an intended recipient receives your signed email, your digital signature will help you verify the sender's identity and assure them that the email is original and hasn't been altered.

Digital Document SigningDigital Document Signing

Apart from signing email messages, a Personal Authentication certificate helps sign documents. It assures the user that the document owner is authentic and confirms the document isn't altered and is in its original form.

Trust & AssuranceTrust & Assurance

Trust is the most important factor in online business. For instance, once customer loses trust, they won't like to do any business with you, which gives you losses. However, by using a digital security certificate, you give assurance about the integrity of signed emails and documents, which shows the sender of the email or document is a genuine and trustworthy person who's safe to deal with.

Compatibility Compatibility

A personal Authentication certificate offers compatibility with various web browsers, email servers, operating systems, and Microsoft office products. In addition, installation is smooth and easy, allowing users to sign emails and documents that prove the person's authenticity.

Robust Encryption StrengthRobust Encryption Strength

Personal Authentication certificate gives you strong encryption for all the signed emails you send. It protects it using strong SHA 256-bit encryption standards that assure email is safe and isn't altered or read by an unintended person.

2FA (Two Factor Authentication)2FA (Two Factor Authentication)

After installing the personal authentication certificate, you'll need to log into the account, which works like two-factor authentication. In addition, it happens behind the scenes, so the user doesn't get affected by it and gets smooth and easy interaction.

Frequently Asked Questions

Have Questions? We're here to help.

What's Personal Authentication Certificate?

Personal Authentication is the digital security certificate that helps secure emails and digital documents. It adds a trusted digital signature to office documents and emails once it's signed. In addition, it encrypts email communications that help ensure the email is in its original form and coming from the authentic person.

Can I Use an SSL Certificate for Signing Emails & Documents?

No, you cannot use an SSL certificate, as it helps secure communication between web browser and server. Similarly, you'll have to use a Personal Authentication certificate for signing your digital documents and email communications.

How Much Time Does It Take to Get Personal Authentication Certificate Issued?

Once you purchase your certificate, you'll need to undergo a slight business verification process, which takes one to three business days to complete. And once the validation process completes, your digital security certificate gets issued.

Live Chat
Live Chat

Talk to our 24/7 SSL, Code Signing, & Email Signing experts to resolve issues regarding issuance, validation, & installation.

Live Chat
24/7 Email Ticketing
24/7 Email Ticketing

Connect with our support experts via call or support ticket for Validation, or sales queries.

Submit Ticket
SSL Brands

SSL/TLS Certificate Trusted Brands

Certera SSL Icon

Starts @ $ 2.99/yr

View All Certificates
Comodo SSL Icon

Starts @ $ 7.49/yr

View All Certificates
Sectigo SSL Icon

Starts @ $ 7.49/yr

View All Certificates
Sectigo SSL Icon

Starts @ $ 225.13/yr

View All Certificates
RapidSSL Icon

Starts @ $ 8.99/yr

View All Certificates
GeoTrust SSL Icon

Starts @ $ 73.00/yr

View All Certificates
Thawte SSL Icon

Starts @ $ 50.00/yr

View All Certificates

Trusted by leading brands Globally

Securing some of the World's
Largest & Best Known Brands

University of Colorado Boulder
ThermoFisher Scientific
Tiffany & Co
Mobile Iron
Omnicom Media Group Holdings
we are rated 4.8/5 Rating Stars

Real customer ratings and reviews at

Rating Stars Fernando S.

I was looking for a wildcard SSL very cheap and i found you guys, and so happy and satisfied with you services.

Rating Stars Gaurav S.

Thanks for your great service with very very low cost.

Rating Stars Billy B.

Great customer service fast and getting done today!

Shopper Aproved
About us

Why Choose Certera?

Easy Refund

30 Days
Easy Refund

Trusted Certificate Authority

Certificate Authority

24/7 Technical Support

Technical Support

Affordable Pricing