Domain transport limit

[rusomenace]

As a company request my postfix needs to be limited to send emails to certain specific domains.
In the traditional instalation this can be achieved adding this to the main.cf at the end of the file:
transport_maps = texthash:/etc/postfix/transport

Then you need to edit /etc/postfix/transport and add something like this:
example.com smtp:
* error:only mail to example.com will be delivered

The question is, how this can be achieved via variables, is it possible?

Thanks

[juanluisbaptiste]

Hi,

No it cannot be done right now.