I'm not sure why it wouldn't work. I'm only wanting to enforce the SMTP-AUTH when it is from and to the same domain. If it is from valid.com and going to test.com it would still go through correctly.. But if it is from test.com and to test.com is when there is a problem. I've already looked at greylisting and I am in the process of getting this setup to do some testing.
I see. That might work. Just hack the qmail-smtpd.c source.
Regards,
Bill
