Re: After a 450, queue or try next MX?

On Wed, 30 Aug 2006, Alex van den Bogaerdt wrote:
> Where does it say the client should stop trying after a 5xx message?
> And I mean stop trying the entire list, not just that one host?
4.2.1 Reply Code Severities and Theory

   5yz   Permanent Negative Completion reply
      The command was not accepted and the requested action did not
      occur.  The SMTP client is discouraged from repeating the exact
      request (in the same sequence).

i.e. the same seqence of commands, regardless of destination host.

Tony.
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