What is a validation email?
A validation email, referred to by Trustico as an approver email, is a form of Domain Control Validation (DCV) which proves ownership of a domain when applying for an SSL certificate.
Where is it sent?
As per CA/B Forum rulings that dictate the SSL certificate
industry, the approver email can only be sent to an email address that is
registered to the domain through the domain registrar (WHOIS) or to any one of
the five generic domain aliases as listed below:
admin@example.com
administrator@example.com
postmaster@example.com
hostmaster@example.com
webmaster@example.com
For more information on validating via an email listed on your domain registrar (WHOIS) record, check out my article:
blog.trustico.com/resources/resource-articles/whois-and-ssl-tls-certificate-validation.php
Why haven’t I received it?
First, ensure that you have access to the email address the approver email is being sent to. Simply check your order details for where it is being sent. To do this from your Trustico account, simply login and locate the order, click the ‘View’ button, and navigate to Authentication Options. This page will show where the approver email is being sent.
If you are sure you are checking the inbox on the right email address and are still not receiving the approver email, check your spam-filter and whitelist “noreply_support@sectigo.com“. If you are still unable to receive the approver email, we recommend including Trustico in your TXT and SPF records. Example: “v=spf1 a include:spf.trustico.com ~all”.
Adding these should ensure you receive the approver email. If though, for some reason, you find that you still cannot receive the approver email to the relevant email address, you can instead complete Domain Control Validation via HTTP file based or DNS CNAME record.
For HTTP file based or DNS CNAME record validation, login to your Trustico account and start a Live Chat with one of our agents for assistance.

Mitchell has a Bachelor of Arts with Majors in Journalism and Foreign Relations; and a Diploma of Digital Design.