Not at all. asgljgsglhg.aergohgergearguaoreg.gaegergheagaerhgaerhgopaeg is just as much an FQDN as mail.google.com.
Ron Scott-Adams r...@tohuw.net "Soap and education are not as sudden as a massacre, but they are more deadly in the long run." (Mark Twain) On Jun 7, 2013, at 09:16 , Nikolas Kallis <n...@nikolaskallis.com> wrote: > On 07/06/13 23:11, Mark Goodge wrote: >> On 07/06/2013 14:06, Nikolas Kallis wrote: >>> Hello, >>> >>> >>> >>> I just got an unsolicited e-mail from the domain 'bbbmail.com', which is >>> hosted at '46.235.78.1'. >>> >>> '46.235.78.1' does not resolve to a host name, therefore 'bbbmail.com' >>> is not a FQDN. >> >> 'bbbmail.com' is a fully qualified domain name. That is completely >> irrelevant to the question of whether the source IP address resolves to >> a host name. >> >> Mark > > I thought for a domain to be fully qualified, it must have a PTR record setup > for it?
