Email, Messaging, & Video Calls > Email How to Send Email to Undisclosed Recipients in AOL When you want to hide recipients' addresses from each other By Heinz Tschabitscher Heinz Tschabitscher Writer University of Vienna A former freelance contributor who has reviewed hundreds of email programs and services since 1997. lifewire's editorial guidelines Updated on June 1, 2021 Tweet Share Email Tweet Share Email Email Yahoo! Mail Gmail What to Know Compose your message as usual.Click BCC and enter the email addresses of all the intended recipients, separated by commas.Send your email. This article explains how to hide recipients' addresses when you send a group email in AOL Mail. How to Send Email Without Disclosing Other Recipients' Addresses When you need to hide recipients' addresses in your AOL email message, use the BCC (blind carbon copy) field. Here's how. Click Compose to start a new email. Click BCC. Enter the email addresses of all the intended recipients, separated by commas, in the BCC box. You can also insert an entire address book group. Compose your message and click Send. In general, avoid sending mass emails via a personal email account. Instead, use a service such as Constant Contact or MailChimp. They can send mass emails for you correctly without your messages getting marked as spam. Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit