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CPAC Basic

Ideally for




Issue time

5 minutes


Email / Documents

Validation Requirements

Domain Control

Certificate Fields

[email protected]

Email Encryption & Signing


Document Signing


User Authentication


Secure Hash Algorithm


Key Encryption

2048 bit

Certificate Encryption

Up to 256-bit

Sectigo Personal Authentication Certificate (CPAC) Basic is an easy, affordable, and excellent solution to secure business communications such as emails, documents, and user access. The perfect choice for both individuals and small businesses, this Email certificate has the following features:

Email Encryption

CPAC Basic digitally signs your emails and provides end-to-end encryption between you and your recipients. Once the email leaves your server, cyber-attackers can’t intercept or decrypt it. The 256-bit encryption and a 2048-bit signature key are more than enough to keep even the most dangerous hackers away.

Microsoft® Office and OpenOffice Document Signing

Along with emails, this certificate can also secure Microsoft® Office and OpenOffice business documents. It will also help you transition from ink paperwork to digital workflows. By identifying yourself as the document signer, you’ll prevent document altering after you sign it.

Two-Factor Authentication

In today’s online environment, passwords alone aren’t enough to protect your assets and data. With so many security threats looming over your business, adding another layer of protection is a must. Sectigo Personal Authentication Certificate (Basic) comes with two-factor authentication – the industry standard used by banks worldwide. 

FDA ESG compliant

If you’re doing business with the FDA (Food and Drug Administration), encrypting your emails is required. The ESG (Electronic Submission Gateways) verifies the senders’ identity before sending your email to the relevant FDA office. This email certificate ensures smooth and secure communication with the FDA.

Domain Control

Sectigo CPAC Basic is quick and easy to obtain. All you have to do is prove you’re the owner of the domain you want to encrypt. The certificate info field will display your email address.

Compatible with almost any platform

This certificate will work on almost all servers, email clients, and browsers. You can install it on Windows, Linux, Mac, and many other platforms. It also supports major email servers such as Netscape Communicator, Microsoft Outlook, Microsoft Exchange, and Mozilla Thunderbird.

21 reviews for CPAC Basic

  1. 5 out of 5

    Review by Gregory

    Impressed at how fast it was issued, but struggled a bit with the installation until I read the FAQ section. All good now.

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  2. 5 out of 5

    Review by Florence

    Works as advertised. Sectigo is a serious company and its products are excellent.

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  3. 5 out of 5

    Review by Messenger

    Great 3 in 1 solution. I needed to secure my emails and documents. The included two-factor user authentication is a nice bonus.

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  4. 5 out of 5

    Review by Angela

    In today’s Internet, you can’t leave anything to chance. Ten dollars a year is nothing compared to sensitive data loss.

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  5. 5 out of 5

    Review by Stephen

    It came as a shock to me when my email was hacked. I regret I didn’t know about CPAC basic before.

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  6. 5 out of 5

    Review by Norman

    Love the user authentication feature, exactly what I was looking for.

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  7. 5 out of 5

    Review by Antoine

    Easy to buy and install.

    Posted on
  8. 5 out of 5

    Review by Luke

    Finally encrypted my email as well, very happy about the price.

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  9. 5 out of 5

    Review by Caroline

    I’d rather spend $10 a year, than sweat over the security of my emails.

    Posted on
  10. 5 out of 5

    Review by Ryan

    As a Comodo fan, I’m happy they went the extra mile to provide email and document protection. I’ve been using their SSL certificate for years to secure my sites. Now, may email is also safe.

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  11. 5 out of 5

    Review by Vadym

    Received this cert in under 5 minutes. SSL Dragon took care of the installation for me. So far it works flawlessly.

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  12. 5 out of 5

    Review by Jonathan

    I am amazed by how many people ignore the dangers of unencrypted emails. I was in the same boat until a MITM (man-in-the-middle) attacker intercepted my sensitive communications and then started blackmailing me. I learned a hard lesson to not take anything for granted. Now, all may online correspondence is secure thanks to CPAC.

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  13. 5 out of 5

    Review by Camila

    I’m using this certificate for all my projects. I wish the installation was a bit easier, but other than that can’t complain.

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  14. 5 out of 5

    Review by Justin

    Excellent product for encrypting emails and documents. Best of all, it’s so cheap!

    Posted on
  15. 5 out of 5

    Review by Jarrod

    Configuration is a little clumsy, but works fine

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  16. 5 out of 5

    Review by Daniel

    Didn’t know Comodo makes SSLs just for emails. Works perfectly!

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  17. 5 out of 5

    Review by Ben

    Works great! Thank!

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  18. 5 out of 5

    Review by Haleigh

    Works perfect on my email! Thanks guys!

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  19. 5 out of 5

    Review by Hellen

    With CPAC Basic all my email exchanges are safe. It offers outstanding value for such a low price.

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  20. 5 out of 5

    Review by Edward

    I was surprised to see Comodo offered SSL Certificates for emails only. Quite easy to install.

    Posted on
  21. 5 out of 5

    Review by diego

    a little bit different to configure than a regular ssl, but got and installed it – works fine

    Posted on

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Here is a list of the most common questions our customers have when buying a Sectigo CPAC SSL Certificate:

What are Multi-Year SSL Subscription Plans?

Starting with August 19th, 2020, the maximum duration of publicly-trusted SSL/TLS certificates issued by all Certificate Authorities (CAs) has been set to a maximum of 13 months.

However, in order to make your SSL Management process time-saving and cost-effective, the CAs and SSL Dragon are offering you the 2 Year and 3 Year SSL Subscription Plans.

This means that you can still buy a 2 or 3 year SSL Certificate and continue to benefit from multi-year discounting, while still remaining compliant with the CAB Forum SSL requirements.

How the Multi-Year SSL works?

Due to security reasons, your SSL certificate is initially issued with a maximum 1-year validity.

Prior to the expiration of your certificate, SSL Dragon, on behalf of the CA, we will issue a free replacement certificate for an additional 1-year certificate, according to your Subscription Plan.

You will need to validate & install the replacement SSL:

a. If you have a Domain Validation SSL Certificate, a short verification of your domain name will be required via Email, HTTP, or DNS in order to issue the 1-yr replacement SSL.

b. If you have a Business or Extended SSL Certificate – an additional Business Validation/Extended Validation recheck and callback process will also be required.

You can still reissue your certificate at any time and as many times as you like during your Multi-Year SSL Subscription Plan.

On your SSL Certificate’s page within the SSL Dragon account, you will find all the details regarding your Subscription Plan:

  • Valid From – Shows the date when your SSL was issued and became active
  • Expires – Shows the date when your SSL expires and needs to be reissued (not Renewed).
  • Subscription Starts – The date when the first SSL was issued and the subscription period activated
  • Subscription Ends – The date when the subscription ends and SSL needs to be Renewed (not Reissued)
  • Next Reissue – shows the number of days left of your SSL. The Certificate should be reissued 30-days prior to this date.

Sectigo Personal Authentication Certificates provide you the highest level of protection by enabling end-to-end encryption of your email communications. By signing and encrypting your outgoing email messages, you protect them from Man-in-the-Middle attacks, https proxies, or packet-sniffers, therefore your messages can’t be intercepted and decrypted by a malicious third party.

Encrypting Email Messages guarantees their privacy and integrity, while digitally signing the messages authenticates you as being the genuine sender. In this way, you will secure yourself and your business from accidental or fraudulent data exposures, privacy breaches, and other potential security threats associated with business communication. 


Sectigo Personal Authentication Certificate lets you easily sign any valuable and critical personal or company document, therefore ensuring compliance with industry requirements of digitally signed documents. By digitally signing the document, you identify yourself as the authentic document signer and certify its integrity by proving that your document hasn’t been altered since it was signed. In this way, CPAC SSL Certificates help you migrate from ink & paper to digital workflows of contracts, sign-offs, request forms and other important company documents, working in tandem with or replacing the visible signature feature in Microsoft® products such as Microsoft Office Suite, Open Office Suite, VBA Macros and more.



 Sectigo Personal Authentication Certificate helps businesses reduce the risks and threats associated with using standard passwords by enabling the two-factor authentication of users. If you need a stronger guarantee that the person logging into your company network or account is your legitimate employee, CPAC SSL Certificates will allow you to secure your sensitive and private customer or corporate data by enabling the industry standard used by banks all over the world – two-factor authentication – seamlessly integrating the certificate as a second authentication element. In this way, you will protect your company access, including remote, from any hackers attempting to steal usernames and passwords. 

Sectigo Personal Authentication Certificates were designed for individuals and businesses who are looking at implementing the best web security practices, such as email & document encryption and user two-factor authentication. However, each CPAC SSL Certificate was designed to fit a particular need. Just like DV, BV, and EV SSL Certificates, CPAC SSL Certificates come with different validation requirements which enable certain certificate fields:

  • CPAC Basic – requires Domain Control and displays only your email in the SSL Certificate
  • CPAC Pro – requires Domain Control and Identity Verification in order to display your email, First and Last Name in the SSL Certificate
  • CPAC Enterprise – requires Domain Control, Identity Verification, and Organization Validation in order to display your email, First and Last Name, as well as Company Name and Address in the SSL Certificate.

Based on your actual needs, you can now decide which Sectigo Personal Authentication Certificate is the best option for you, providing you an enhanced web security of your business activity. 

You can install your Sectigo CPAC Certificate as soon as it has been issued to you.

Here are installation instructions for different browsers, email clients, and mobile devices provided by Sectigo:

Here are the steps that you need to do in order to reissue your Sectigo CPAC Certificate:

1) Login at using the username and password that you used when you configured your Sectigo CPAC initially;
2) Once you are logged in, find the “Replace” button and click on it;
3) You will start the reissue process for your Sectigo CPAC SSL.
4) Follow the steps and instructions that come next, until you complete the Sectigo CPAC Certificate reissue.

Server and Client OS Compatibility

ClientOS Windows 7, Vista, XP, 2000, Snow Leopard, Mac OS

Server Platforms And Mobile Browser Compatibility

Server Platforms:
  • BEA Weblogic
  • IBM HTTP Server
  • Microsoft ISA
  • Microsoft IIS
  • Microsoft SQL Server 2005
  • Microsoft Live Communication
  • Apache
  • BEA Weblogic
  • Lotus Domino
  • OpenLDAP
  • C2Net Stronghold
  • Plesk
  • WebSTAR
  • Webmin
  • Java Web Server (Javasoft / Sun)
  • Ensim Control Panel
  • cPanel / Web Host Manager
  • Hsphere
  • C2Net Stronghold
  • iPlanet Server / Sun One
  • Java Web Server (Javasoft / Sun)
  • Lotus Domino
  • Tomcat
  • Netscape Enterprise Server
  • Novell ConsoleOne
  • Novel Webserver
  • C2Net Stronghold
  • And other SSL-Capable Servers

Need help securing your website? Have questions, or unsure which SSL to choose? Let our fearless dragons help you! Follow the following steps towards getting the type of help that you need.

1. Use our Wizard and find the SSL Certificate that suits you best;

2. Find your answers on our Frequently Asked Questions page;

3. Open a Ticket with our Sales, Billing and Technical Support dragons. We will answer your ticket as soon as possible. We work Monday through Saturday, from 9 AM to 11:00 PM Pacific Time;

4. Email us using our Contact Form.

Duration Price You Save
1 year £12.30
2 years £20.50
3 years £28.70

Order Steps

  • Click "Buy Now"
  • Create/Access your account
  • Submit payment
Configure the certificate in your account
Pass validation & receive your SSL Certificate

Other certificates from this issuer:

Sectigo Document Signing Certificate £191.33
Sectigo Pro S/MIME £30.88
Sectigo Personal S/MIME £12.30
See more

Certificates of the same validation:

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SSLS that secure same domains / sub-domains:

Sectigo Document Signing Certificate £191.33
Sectigo Pro S/MIME £30.88
Sectigo Personal S/MIME £12.30
See more