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How can I not reveal group members' email addresses when sending a group message?

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I want to send a group message without revealing, as a courtesy, the email addresses of everyone in my group to all members of the group. How can I mask the other recipients? --Gary

I want to send a group message without revealing, as a courtesy, the email addresses of everyone in my group to all members of the group. How can I mask the other recipients? --Gary

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Use BCC instead of TO. That is what that feature is for.

Blind Carbon Copy