Tips For E-mail Tip: The Difference Between To:, CC:, and BCC:

“To: Add contacts who you are directly communicating with.
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“CC: Carbon Copy - It acts more like a differentiator for contacts who may want a copy of the email but are not required to participate in the conversation, i.e. management.
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“BCC:Blind Carbon Copy-It is where you put contacts who shouldn’t see the other contacts.”