Indicates blind carbon copy recipients for the message.
property BccList: TIdEmailAddressList;
Description
BccList is a TIdEMailAddressList property used to store email address of recipients that will receive a carbon copy of the message, but do not appear in the "To:" headers for the message.
BccList is often used for mailing list applications, where members of the mailing list should receive a copy of a message addressed to the list.