postfix/mail: server blacklisted -- what have I done wrong?

Matt Price matt.price at
Fri Mar 24 20:00:19 UTC 2006

On Fri, 2006-03-24 at 14:31 -0400, Derek Broughton wrote:
> Lea Gris wrote:
> > Matt Price a écrit :

> >> 2 - If localhost.localdomain is ALWAYS a broken value for myaddress, how
> >> does it come about that this is even a configuration option?  SHould I
> >> for instance file a bug?
> It's not a "configuration option".  It's a default value which you're
> supposed to change in debconf before you ever configure your postfix
> server.
fair enough then, my bad I suppose.

> > Either you have a dynamic IP address or an address listed as such in the
> > related RBLs.
> I don't think it said that.  
> > Either the distination MX check for proper FQDN which can not be with
> > dynamic IP address from internet providers that may not have proper
> > reverse DNS either.
> IIf they're really blacklisting servers for sending mail from FQDNs that
> aren't MXes they should be shot.  There's no reason a _sending_ mail
> address should be a valid MX.  There's also no reason that it should have
> 'proper' reverse DNS.  My _proper_ domain,, is on a hosting
> service.  A reverse lookup on the IP is always going to show
>  There's nothing wrong with that, either in
> practice or in the various mail RFCs.
> > 

glad to hear that's ok, the stringent requirement proposed here &
elsewhere seemed a little strong.  In this particular case the error was
the much more egregious localhost.localdomain one described above.

thanks again all,

> derek

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