Hi, Yes, we are unfortunately one of the bad guess atm, and I want to change that ... so hopefully this will give Exchange users and idea how to fight it, if they are using this kind of setup.
2010/5/19 Karsten Bräckelmann <guent...@rudersport.de>: > On Wed, 2010-05-19 at 23:13 +0200, Mikael Syska wrote: >> Not to highjack the thread, but there are also other things to consider. >> >> I have no idea how on Postfix, but this could help you too Scott Lavoie. >> >> If there are multiple exchange backends for postfix/spamasassin >> gateway ... how could one validate that users exists, given that you >> only have a list of valid users for some of the exchange servers and >> the mailahead/milterahead/smtp are not an option? > > Don't think you're hijacking the thread -- you just stated exactly, what > I mentioned in my previous post. Yes, and I was actually thinking of writing the post one of these days, but this seems to be the right time to open such question. Reading in the docs ... there seem to be a way, but not for me logical way of doing this. I I will need some hints, maybe I need to post to the postfix mailing list :-) > > The only real problem, validating recipients at the front MX, based on > the data in the backend Exchange servers. Everything else is not a > problem, even though managing a Linux server might seem to be one from > the point of view of a Windows admin... ;) > > > -- > char *t="\10pse\0r\0dtu...@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4"; > main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;i<l;i++){ i%8? c<<=1: > (c=*++x); c&128 && (s+=h); if (!(h>>=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}} > > mvh