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

LeaderTelecom B.V. is VAT-registered with the UK’s HM Revenue and Customs (HMRC) and has a UK VAT number (GB373878249) , so we can charge UK VAT as normal. All invoices for UK customers now include 20% VAT, although still denominated in EUR as the company’s tax residency is the Netherlands.

Common Mark Certificate (CMC) by DigiCert

Common Mark Certificates allow organizations to place a brand logo in the Sender field of outbound emails, confirming the organization’s DMARC status and authenticated identity, and helping protect against phishing and spoof attacks.

Common Mark Certificates are similar to Verified Mark Certificates but do not require a registered trademark for usage. This allows a broader range of senders to add an additional layer of security to emails and help their recipients feel comfortable that the emails come from a legitimate source.

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To qualify for a Common Mark Certificate:

  • The corresponding email domain must be configured to enforce DMARC
  • The corresponding brand logo must either:

    - have at least year of previous public usage on a domain controlled by the applicant, or

    - be an acceptable modification of a registered mark. (See Section 3.2.16 of the BIMI Group’s Minimum Security Requirements for Issuance of Mark Certificates for more details.)

  • The logo file used for the Certified Mark Certificate must be an SVG file that adheres to the SVG-P/S profile.

Note: Currently, most image editing tools do not support the SVG-P/S profile and will require using a specific conversion tool or manually editing an SVG file. See guide for properly formatting the logo.

Which one do you prefer?

Email without CMC

Common Mark Certificate disable

Email with CMC enabled

Common Mark Certificate enable

Digicert Common Mark Certificate

  • Issuance from 3 days
  • Required organization verification
Degree of trust:
For organisations
  • Display your brand logo in various email clients
  • Helping to effectively combat phishing
  • Completed high-assurance verification

Price: £948.00 /1 year excl. VAT

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