Re: I need help with pf and smtpd.conf to deal with an ongoing attack on port 25 that is sending out emails.

>Apart from that, you might be able to do something different with your
>MTA: you can configure it to listen on the egress interface, allowing
>only for local delivery, *and* to listen on lo0, allowing those messages
>to be forwarded. This shouldn't be too hard to do with OpenSMTPD.

Shouldn't a UNIX socket work too?

Regards,
rakete