Milter-greylist

On Fri, Jan 28, 2005 at 03:48:21PM -0000, hvli wrote:
> Then, I have a question.  I have many users who regularly receive 
> mails from many countries.  I have no idea if those servers repeat 
> or not repeat messages.  The chances are that some of them may not 
> repeat, you never know in advance.  It seems that the way to know 
> those not-repeat-message-servers is to let my users miss some (maybe 
> a lot) emails before they realize and report the problem to me.  
> They will be very upset! (I will be upset too if that happens to 
> me).  Is this the case it should be?  I have no way to ask every 
> user in my system to tell me whom they should receive email from.  
> Then, what to do?

Non resending hosts violate the SMTP standard. They already loose mail
on a random basis without greylisting: if a server is too busy, it will
refuse new message with a temporary error, and a non resending server
will loose the server.

greylisting makes the loss permanent. This is a great opportunity for
the borken site to discover the wrong setup and fix it. In any wase, 
the person to blame is the non resending site administrator. 

-- 
Emmanuel Dreyfus
manu@...