On Thu, 29 Dec 2005, Theo Schlossnagle wrote:
ymb1.mail.vip.sc5.yahoo.com. 1800 IN MX 0 .
Yahoo believes that a "NULL MX" means the following:
http://ietfreport.isoc.org/idref/draft-delany-nullmx/
I'd tend to agree.
Exim implements this logic as part of its SMTP routing and address
verification: any domains with null MXs will be considered invalid.
This parallels the SRV record syntax for indicating no service.
Tony.
--
f.a.n.finch <dot(_at_)dotat(_dot_)at> http://dotat.at/
BISCAY: WEST 5 OR 6 BECOMING VARIABLE 3 OR 4. SHOWERS AT FIRST. MODERATE OR
GOOD.
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