instantMessageAddresses An array of instant message addresses for the message. Declarationvar instantMessageAddresses: [String]? { get set } See AlsoDescribing messagesCommon Mailbox IdentifiershtmlContentDataaccountHandlesaccountIdentifieradditionalRecipientsauthorAddressesauthorEmailAddressesauthorNamesauthorsemailAddressesemailHeadershiddenAdditionalRecipientslikelyJunkmailboxIdentifiersphoneNumbers