Re: DNS recommendations - the paper

> > The Bat Book advises you to always add MX records > poor and unnecessary advice. Opinions may differ here... I've been through this discussion numerous times. Seen from the outside world, CWI e-mail addresses may *only* be "user@cwi.nl" or "My.Name@cwi.nl". Internally we work with addresses including the mailhosts only for reaching those mailhosts, and MX does play a role here. Therefore the cwi.nl zone file doesn't contain MX records, except where *absolutely necessary*, i.e.: - for the domain cwi.nl itself; - for the mailhosts (fallback!). All additional MX records would be non-functional and mere pollution of the zone file. Piet