Milter-greylist

--- In milter-greylist@yahoogroups.com, manu@n... wrote:
> roxpace_ <roxpace@w...> wrote:
> 
> > It can be so that they don't repeat all messages, and if so how 
> > common is that and/or what can we do about that who wanna use 
this 
> > greylisting procedure ?
> 
> Whitelist them.
> 
> -- 
> Emmanuel Dreyfus

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?

Thanks!

Harvey