On 21/10/12 16:29, Mark Goodge wrote: > On 21/10/2012 15:21, Mike's unattended mail wrote: >> On 2012-10-21, Mark Goodge <m...@good-stuff.co.uk> wrote: >> >>> And, even if it isn't spam, it is a near-100% indicator of >>> incompetance on the part of the sending system's administrator. >> >> How do you think a competent sys admin sets the EHLO under the >> circumstances of not buying a domain name, and not establishing a >> business relationship with a third party? > > Anybody with a server connected to the Internet has a business > relationship with a third party - that is, their connectivity > provider. And, unless you have PI address space, the IP address of > your sever is allocated by your connectivity provider. So, assuming > your connectivity provider is competant, there will be forward and > reverse DNS in place for that IP address. So there is no problem with > setting your EHLO greeting to be the hostname found in your provider's > DNS. > > Obviously, that fails if your provider isn't competant. But the > solution to that is to get a better provider, not to blame the > recipients of your email. > > Mark > If you add IPv6, it might become very troublesome...
And it will depend on your part on the world, also
