On 12 Aug 2013, at 10:46 , Wietse Venema <wie...@porcupine.org> wrote: > LuKreme: >> What exactly does this warning mean? >> >> mail postfix/smtpd[42297]: warning: valid_hostname: empty hostname > > It means that something had an empty hostname. You provide too little > context to determine what that something was, so I won't speculate.
It looks like it is firing the warning before a connecting that identifies itself by IP address. -- Were it not for frustration and humiliation I suppose the human race would get ideas above its station. -Ogden Nash