Pour éviter les doublons d'envoi si plusieurs acteur ont était ajouter à la commEvent

CommunicationEventServices:168
                    for (GenericValue commRole : commRoles) { // 'from' and 'to' already defined on communication event
                        List<String> availableRoleTypeIds = UtilMisc.toList("ADDRESSEE", "CC", "BCC");
                        GenericValue contactMech = commRole.getRelatedOne("ContactMech", false);
                        if (UtilValidate.isNotEmpty(contactMech)) {
                            String infoString = contactMech.getString("infoString");
                            String roleTypeId = commRole.getString("roleTypeId");
                            if (UtilValidate.isNotEmpty(infoString)) {
                                if (!emailAlreadyLoad.contains(infoString)
                                        && availableRoleTypeIds.contains(roleTypeId)) {
                                    emailAlreadyLoad.add(infoString);
                                } else continue;
                                if ("ADDRESSEE".equals(roleTypeId)) {
                                    sendTo = "," + infoString;
                                } else if ("CC".equals(roleTypeId)) {
                                    if (sendCc != null) {
                                        sendCc += "," + infoString;
                                    } else {
                                        sendCc = infoString;
                                    }
                                } else if ("BCC".equals(roleTypeId)) {
                                    if (sendBcc != null) {
                                        sendBcc += "," + infoString;
                                    } else {
                                        sendBcc = infoString;
                                    }
                                }
                            }
                        }
                    }
                }