ေရႊလင္းေျမ

There are a number of reasons for using this feature:

• BCC is often used to prevent an accidental "Reply All" from sending a reply intended for only the originator of the message to the entire recipient list.^[3]
• To send a copy of one's correspondence to a third party (for example, a colleague) when one does not want to let the recipient know that this is being done (or when one does not want the recipient to know the third party's e-mail address, assuming the other recipient is in the To: or Cc: fields).
• To send a message to multiple parties with none of them knowing the other recipients. This can be accomplished by addressing a message to oneself and filling in the actual intended recipients in the Bcc: field. However, this does not ensure that the Bcc: addresses will be hidden from other Bcc: addresses in all implementations.
• When sending an e-mail to multiple recipients, one can hide their e-mail addresses from each other. This is a sensible anti-spam precaution because it avoids making a long list of e-mail addresses available to all the recipients (which is what happens if one were to put everyone's a

In the context of correspondence, blind carbon copy (abbreviated Bcc:) refers to the practice of sending a message to multiple recipients in such a way that conceals the fact that there may be additional addressees from the complete list of recipients. This concept originally applied to paper correspondence and now also applies to email. ^[1]
In some circumstances, the typist creating a paper correspondence must ensure that multiple recipients of such a document not see the names of other recipients. To achieve this the typist can:

• Add the names in a second step to each copy, without carbon paper
• Set the ribbon not to strike the paper, which leaves names off the top copy (but may leave letter impressions on the paper)

With email recipients of a message are specified using addresses in any of these three fields:

• To: Primary recipients
• Cc: Carbon copy to secondary recipients—other interested parties
• Bcc: Blind carbon copy to tertiary recipients who receive the message without anyone else (including the To, Cc, and Bcc recipients) seeing who the tertiary recipients are.