Re: Underscores in host names

[Mark Andrews <Mark_Andrews () isc org>]

In article <Pine.LNX.4.60.0505180849230.24969 () hermes-1 csi cam ac uk> you write:
> There are also mail domains to consider. They have superficially the same
> syntax as host names (they cannot have a trailing dot) but they are
> generally checked much more strictly for conformance to that syntax. I'm
> not sure whether the original post was about a mail domain or the name of
> a mail host, but if it was the former I would be surprised if the customer
> could claim that it works most of the time.

        Hostnames can't have a dot at the end either.  The dot at the
        end is a local resolver indication to not use the search list.

        Mark