Drew Mazurek: > Is there a configuration that will do what I want -- if a domain doesn't > exist at all, Postfix will defer rather than bounce?
It's called soft_bounce=yes. Use with care: this will defer ALL
bounces including "user unknown" and other errors.
smtp_defer_if_no_mx_address_found is for the case that the MX record
DOES exist, but the MX hostname has no IP address. In your case the
MX record does not exist.
Wietse
