XTLS/Xray-core · error

unable to send through: {address.String()}

Error message

unable to send through: {address.String()}

What it means

Error "unable to send through: {address.String()}" thrown in XTLS/Xray-core.

Source

Thrown at infra/conf/xray.go:310

	case "forceipv6v4":
		senderSettings.TargetStrategy = internet.DomainStrategy_FORCE_IP64
	default:
		return nil, errors.New("unsupported target domain strategy: ", c.TargetStrategy)
	}
	if err := c.checkChainProxyConfig(); err != nil {
		return nil, err
	}

	if c.SendThrough != nil {
		address := ParseSendThough(c.SendThrough)
		// Check if CIDR exists
		if strings.Contains(*c.SendThrough, "/") {
			senderSettings.ViaCidr = strings.Split(*c.SendThrough, "/")[1]
		} else {
			if address.Family().IsDomain() {
				domain := address.Address.Domain()
				if domain != "origin" && domain != "srcip" {
					return nil, errors.New("unable to send through: " + address.String())
				}
			}
		}
		senderSettings.Via = address.Build()
	}

	if c.StreamSetting != nil {
		ss, err := c.StreamSetting.Build()
		if err != nil {
			return nil, errors.New("failed to build stream settings for outbound detour").Base(err)
		}
		senderSettings.StreamSettings = ss
	}

	if c.ProxySettings != nil {
		ps, err := c.ProxySettings.Build()
		if err != nil {
			return nil, errors.New("invalid outbound detour proxy settings").Base(err)

View on GitHub (pinned to 7d214f8b09)

When it happens

Trigger: Thrown at infra/conf/xray.go:310 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of XTLS/Xray-core@7d214f8b09 (2026-08-15). Data as JSON: /api/errors/8974084d2dfe61b5. Report an issue: GitHub.