[Mimedefang] Re: Filtering idea for stock pump&dumps

[John Rudd]

Scott Silva wrote:
>> FYI, based on what we have confirmed over the past 2 weeks, greylisting
>> is causing widespread FPs with Microsoft Exchange 2003 SP2.  In short,
>> Microsoft is interpreting 4XX errors as 5XX errors and generating NDRs.
>>
> What! A Microsoft program broken? It can't be! The RFC's must be broken!  ;-P
> 

Exactly!  Therefore, we at MS, choose to ignore the RFCs and implement 
behaviors that we think are more important and correct than the RFCs. 
After all, we're Microsoft.  We own your computer ... unless it's one of 
those toys.