Ruppert G. von Teutul:
> > > If I send a mail to someone at live.com it does not pass to the
> > > fallback_relay if relayhost is down. In theory this should only
> > > happen if my machine announces itself as MX for live.com. Correct?
> >
> > Oops, I wrote that code long enough that my memory is incorrect.
> >
> > Try putting the smtp_fallback_relay inside [].
> >
> > If that does not turn off MX host detection, then I will read
> > Postfix source code more closely.
>
> I nearly always use [] since my first negative experiences with MX lookups.
> So I did here. I specified [127.0.0.1]:10027 as fallback_relay.
> I did that for relayhost (with another host), too.
Dang. I'll have to check the source code against the docs.
> (Is there any reason I would prefer default_transport over relayhost?)
default_transport specifies the name of the mail delivery service
and may contain the destination as well.
relayhost specifies only the destination.
Wietse