The practice of sending an email to multiple recipients in such a way that some recipients’ addresses are concealed from others is a common feature in email applications. Outlook email, for example, allows a user to send a message to one set of recipients visible to all, and simultaneously send the same message to another set of recipients whose addresses are not disclosed. This function ensures privacy and discretion. An example is sending a newsletter; the sender may wish to prevent recipients from seeing the complete list of subscribers.
Employing this function offers several benefits. It safeguards the privacy of recipients, preventing their email addresses from being harvested for spam. It maintains professionalism in situations where recipients may not know each other or where sharing contact information would be inappropriate. Historically, this functionality has been crucial in maintaining etiquette in mass communications, distinguishing personal correspondence from impersonal bulk mailings. It allows the sender to control the flow of information and manage recipient expectations regarding privacy.
