I'm slightly confused as how to configure smtpd.conf so that it does not accept unauthenticated mails for our domain. right now, everyone can send fake mails to us using our scalix server. it's not completely open though, sending mails to external domains doesn't work that way, that's only working if the sender authenticates itself.
here's my smtpd.conf, or at least part of it:
# NB Authenticated RELAYs are always allowed
RELAY accept internal_ip
RELAY accept 127.0.0.1
RELAY accept .maildomain1
RELAY accept .maildomain2
RELAY Log_Reject ALL
# Reject all anonymous connections
AUTH_MISMATCH Log_Reject ALL
# extra rules added to prevent open relay usage
RECIPIENT Log_Reject *@*@*
RECIPIENT Log_Reject *%*
RECIPIENT Log_Reject *!*
RECIPIENT Log_Reject *#*@*
is there even a way to avoid that?
- hendrik