ha_proxy_source_address

Optional string.

Specifies the source address that the HA Proxy server should use when initiating a connection.

Note

The HA Proxy protocol doesn't provide a mechanism for reporting whether binding to this address was successful. From the perspective of KumoMTA, invalid proxy configuration will appear as a timeout with no additional context. We recommend using SOCKS5 instead of HA proxy, as the SOCKS5 protocol is better suited for outbound connections.