ietf-smtp
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Re: 400 defer

2011-09-27 21:15:53

Basically, never seen it use before (AFAIR) and wanted to know what others thought, seen or knew something about it. It turned out something like a "greylisting like" behavior. A subsequent 4th retry (15 mins, 15 mins, 30 mins) did successfully send it.

The only thing that crossed my mind (after seeing this) was whether using 40z was correct for a retry (without change) and the x0z contradicting it (i.e. syntax error). It seems 40z should never apply.


John C Klensin wrote:


Hector, could you clarify what you wanted to find out from this
list?

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