Final answer:
To send multiple emails without revealing recipients' addresses, one should use the BCC feature to ensure privacy and email etiquette. The approach helps prevent mass reply-alls and is considerate of data protection regulations.
Step-by-step explanation:
To send multiple emails without showing addresses, you can use the "BCC" (blind carbon copy) feature found in most email clients. When you add recipients to the BCC field, their email addresses are hidden from other recipients. Only the sender and the individual recipient can see their own address.
This method is especially useful in preserving the privacy of the recipients and is commonly used in business communications and by organizations when sending out newsletters or mass announcements. The BCC feature also helps to prevent recipients from being overwhelmed with reply-all responses and can reduce the potential spread of email viruses.
It's also important to consider the etiquette aspect when using the BCC feature. Ensure that recipients are aware they are part of a larger mailing list and that you're respecting any data privacy laws or regulations that apply.