If you invoke addRecipient multiple times, it will add the given recipient to the list of recipients of the given time (TO, CC, and BCC).
For example:
message.addRecipient(Message.RecipientType.CC, InternetAddress.parse("[email protected]"));
message.addRecipient(Message.RecipientType.CC, InternetAddress.parse("[email protected]"));
message.addRecipient(Message.RecipientType.CC, InternetAddress.parse("[email protected]"));
It will add the three addresses to CC.
If you wish to add all addresses at once, you should use setRecipients or addRecipients and provide it with an array of addresses
Address[] cc = new Address[] {InternetAddress.parse("[email protected]"),
InternetAddress.parse("[email protected]"),
InternetAddress.parse("[email protected]")};
message.addRecipients(Message.RecipientType.CC, cc);
You can also use InternetAddress.parse to parse a list of addresses:
message.addRecipients(Message.RecipientType.CC,
InternetAddress.parse("[email protected],[email protected],[email protected]"));