Yo David! The answer is "b". Check out RFC 2142 "MAILBOX NAMES FOR COMMON SERVICES, ROLES AND FUNCTIONS". "If a host is not configured to accept mail directly, but it implements a service for which this specification defines a mailbox name, that host must have an MX RR set (see [RFC974]) and the mail exchangers specified by this RR set must recognize the referenced host's domain name as "local" for the purpose of accepting mail bound for the defined mailbox name. Note that this is true even if the advertised domain name is not the same as the host's domain name; for example, if an NNTP server's host name is DATA.RAMONA.VIX.COM yet it advertises the domain name VIX.COM in its "Path:" headers, then mail must be deliverable to both <USENET@VIX.COM> and <USENET@DATA.RAMONA.VIX.COM>, even though these addresses might be delivered to different final destinations." RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701 gem@rellim.com Tel:+1(541)382-8588 Fax: +1(541)382-8676 On Tue, 23 Oct 2001, David Howe wrote:
Some country-TLD registrars do have this requirement, however. hmm. related question here then - webmaster@ addresses? assuming www.xxx.com and www.subsite.xxx.com, is it required / best practice to support a) just webmaster@xxx.com b) webmaster@ for each subsite c) some appropriate email address (referenced on the site) not in the same domain (if website domain != email domain)