????????? ???????????:
> Hi !
>
> Is there any Programming Interface (api) , so that a Postfix instance
> could be accessed programmaticaly, say, a C program?
Currently, all the SUPPORTED interfaces require that non-Postfix
code communicates with Postfix via some protocol: examples are
the SMTP protocol, the pipe-to-command protocol, the SMTPD policy
protocol, the Milter protocol, and a simple TCP-based lookup table.
> for example, connect to a Postfix instance and validate if an e-mail
> address is a valid recipient for the specific instance...
You can already do this with the existing SMTP interface.
Wietse