Brand: X-Quisite
X-Quisite CA is an email header added by X-Quisite, a reputable email verification and fraud protection service. It indicates that the email has been verified as legitimate and the sender's email address is accurate. The "CA" in the header stands for "Certified Authority," implying that X-Quisite has confirmed the authenticity of the email sender. This certification helps to prevent email fraud and spam, as it allows email recipients to trust that the email is coming from a legitimate source. It also provides an added layer of security, as emails that do not contain an X-Quisite CA header may be flagged as suspicious or potentially fraudulent.