Hello All, is it possible to set 'requestreadreceipt' value? It doesn't seem to take effect.

email.send({
                    author : currentUser,
                    recipients : recipient,
                    cc : ccrecipient,
                    subject : request.parameters.subject,
                    body : request.parameters.message,
                    attachments : arrDocIds,
                    requestreadreceipt : 'T',
                    relatedRecords : {
                        entityId : project
                    }
                });

Hi @gnuwolf not sure if its the correct syntax. And the read receipt functionality would be determined on the record that the email will be sent from.

email.send({
                    author : currentUser,
                    recipients : recipient,
                    cc : ccrecipient,
                    subject : request.parameters.subject,
                    body : request.parameters.message,
                    attachments : arrDocIds,
                    relatedRecords : {
                        entityId : project
                    },
                    isInternalOnly:true
                });