What is the primary purpose of anti-spam technologies in a Secure Email Gateway?

The primary purpose of anti-spam technologies in a Secure Email Gateway is to identify and block unsolicited emails. These technologies are designed to filter out spam messages that can clutter inboxes, distract users, and pose various security threats, such as phishing attempts or malicious content. By employing techniques like content analysis, sender reputation assessment, and heuristic evaluations, anti-spam solutions effectively distinguish between legitimate emails and unwanted spam. This capability not only protects users from potential harm but also enhances overall email communication by ensuring that users receive only the messages that are relevant to them.

The focus of anti-spam measures is to improve the quality and reliability of email traffic, making option B the most accurate reflection of their primary function.