From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Sat Dec 01 2007 - 20:32:43 CST

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On Sat, Dec 01, 2007 at 10:43:53PM +0000, Keean Schupke wrote:

> have added a dsn_valid() check, and swapped to using strtoul, along
> with unsigned long for all time values... no negative times.

In http://tools.ietf.org/html/rfc4954#section-6, the enhanced status
code for AUTH failures is defined as:

    535 5.7.8 Authentication credentials invalid

which extends:

    http://tools.ietf.org/html/rfc3463#section-3.8

which only defines 5.7.0-5.7.7

It may be appropriate to further check the enhanced status code (if
present) and skip responses where 535 is accompanied by an enhanced
status code other than 5.7.8. On the other hand, the 535 response is not
currently supposed to be accompanied by any other enhanced status code,
so this may be too pedantic.

--
        Viktor.

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