Customer service Billing:

Monday — Friday:
9:00 - 18:00 CET time

Technical Support:

Monday — Friday:
9:00 - 18:00 CET time

Ordering system/certificate issuance:

24/7

Starting July 10, 2025, DigiCert stopped issuance of this product. You must request a Secure Email Certificate instead.

DigiCert Client Premium (SMIME) certificates


Protect your email from hacking, interception or unauthorised reading of your messages; allows you to encrypt messages and digitally sign them.


As low as $202,69 / year *



  • Why do I need
    Digicert Client Premium Certificate?

  • To protect emails and sign documents.

LeaderTelecom DigiCert Client Premium (SMIME) Certificates prices


Sale until October, 31

DigiCert Client Premium (SMIME)

Issuance from 1 day,
with Organisation Validation (OV)

Optimally value of price and quality

Degree of trust:
Organization Validation
For organisations

Verifies your organisation (OV)

Verifies your name and surname

Free Reissuance

Free shipping via email

1 year
$209,68 excl. VAT
Buy
2 years
$408,88 excl. VAT *
Buy
3 years
$608,08 excl. VAT *
Buy


Info logo

If you need a certificate for mail server
protection, you'll need another certificate:


  • — If you use MS Exchange — UCC
  • — If you use another server — PositiveSSL

We work without prepayment! Test 2 weeks for free!

Place an order and get free of charge

Support


We provide clients with quick, friendly and professional support via email and phone

Free unlimited reissuance


Free unlimited reissuance of the certificates when the private key is lost

Getting an SSL certificate from LeaderSSL is as easy as 1-2-3

Issue the certificate
Install it
Test for 2 weeks
(no payment needed)

Payment Options



Are you ready to try?


Yes! Let's do it for free!

Have any questions?
Call us now +31 20 7640722