PHPMailer::addAnAddress( string $kind, string $address, string $name = '' ): bool

1176    protected function addAnAddress($kind, $address, $name = '')1177    {1178        if (1179            self::$validator === 'php' &&1180            ((bool) preg_match('/[\x80-\xFF]/', $address))1181        ) {1182            //The caller has not altered the validator and is sending to an address1183            //with UTF-8, so assume that they want UTF-8 support instead of failing1184            $this->CharSet = self::CHARSET_UTF8;1185            self::$validator = 'eai';1186        }1187        if (!in_array($kind, ['to', 'cc', 'bcc', 'Reply-To'])) {1188            $error_message = sprintf(1189                '%s: %s',1190                self::lang('Invalid recipient kind'),1191                $kind1192            );1193            $this->setError($error_message);1194            $this->edebug($error_message);1195            if ($this->exceptions) {1196                throw new Exception($error_message);1197            }1198 1199            return false;1200        }1201        if (!static::validateAddress($address)) {1202            $error_message = sprintf(1203                '%s (%s): %s',1204                self::lang('invalid_address'),1205                $kind,1206                $address1207            );1208            $this->setError($error_message);1209            $this->edebug($error_message);1210            if ($this->exceptions) {1211                throw new Exception($error_message);1212            }1213 1214            return false;1215        }1216        if ('Reply-To' !== $kind) {1217            if (!array_key_exists(strtolower($address), $this->all_recipients)) {1218                $this->{$kind}[] = [$address, $name];1219                $this->all_recipients[strtolower($address)] = true;1220 1221                return true;1222            }1223        } else {1224            foreach ($this->ReplyTo as $replyTo) {1225                if (0 === strcasecmp($replyTo[0], $address)) {1226                    return false;1227                }1228            }1229            $this->ReplyTo[] = [$address, $name];1230 1231            return true;1232        }1233        return false;1234    }