kumo.invoke_get_egress_source
Since: Version 2025.12.02-67ee9e96
The functionality described in this section requires version 2025.12.02-67ee9e96 of KumoMTA, or a more recent version.
This function triggers a call through to the
get_egress_source event callback(s)
that have been defined in the policy to obtain the effective configuration for
the specified source_name.
The result of that is then serialized and returned as a lua value that has the
same shape as the PARAMS defined for
kumo.make_egress_source.
This function may be satisfied by the internal cache of resolved source
configuration information, so it may not directly trigger the
get_egress_source callback every time that it is called.
Danger
Take care when using this function and its related invoke_xxx functions,
as you can potentially create cross-dependent, mututally recursive,
event callbacks that call into each other.