Use the BCC field to hide recipient addresses from each other
Send separate emails to each recipient for full privacy
Use mail merge to personalize and send individual emails in bulk
Create an email group or contact list, then send one message to the group if privacy is not required
Use an email marketing tool for large-scale individual sending
Check your email client’s options for “send separately” or “individual recipients”
Verify recipient addresses before sending
Keep the subject and message appropriate for all recipients
Test with a small group first if using a bulk-sending method