On Thu, 17 Jul 2003, Kevin P. Fleming wrote:
> If primary is down (doesn't answer TCP open), yes, secondary will be
> tried. If primary returns 4xx response code, no, secondary should not
> be tried.
Why not? Why should the sender treat (for example) "4xx disk full" or
"4xx my configuration is broken" differently to failed to connect?
Consider also the case of several servers with the same MX value. In
that case it's even more clear that another server should be tried.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
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