Am 26.11.2010 22:36, schrieb Terry Gilsenan: > _______________________________________ > From: owner-postfix-us...@postfix.org [owner-postfix-us...@postfix.org] On > Behalf Of Arnim Sommer [rantho...@googlemail.com] > Sent: Friday, 26 November 2010 11:11 PM > To: postfix-users@postfix.org > Subject: Mail.Global.FrontBridge.com > >> Hello, >> unfortunately, @work we are hosted at microsoftonline.com. >> >> Since monday, we are getting mail delays with one of our partners, and >> I could track it down to address verification getting timeouts. >> >> Has anyone else seen that problem, or is it just one isolated problem? >> >> Thank you for your input. >> > > Hello, > In my experience....: > > Microsoft's b0rged hosted exchange and frontbridge system is very broken.
youre right > > Firstly from an MX (inward smtp) point of view, they smell very spammy, rDNS > in one domain, helo in another, and envelope sender from yet another. > > Added to this sender verification does not work, and if you are using > greylisting, the chances are very good that the triplet will never be seen > again, which means a delivery failure for their customers. > > I have had to poke a lot of holes into our system to cope with frontbridge > customers. This has meant that all the spammers that relay through microsofts > customers, or even via Microsoft hosted exchange directly, get delivery to > our system. The amount of spam in our mailboxes has trippled since i removed > sender verification for frontbridge.com and bigfish.com (yep that is the Helo > domain - and probably demonstrated Microsofts view of themselves.) > > Microsoft pay no heed to standards, they are a marketing machine. Open > Source, and RFC's are unlikely to bring in the buck$ for them, so instead > they invent their own. > > How to fix...: > > Put pressure on Microsofts customers. Microsoft is not interested in what you > or I say, but they suddenly get interested when their customers vote with > their checkbooks. > > When Microsofts customers complain that they cant send email to your users, > be conforted in the knowledge that there are a lot of places they can not > send email now, based on Microsofts brokenness. Microsoft doesnt care. > > My 2 bits. > > T the microsoft customer service as well others from big companies are nightmares, if they react , it takes weeks at minimum, the only way may get faster is by pressing from customer itself, mostly you have to fix problems at your side i think investing time to disuss that is loose -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
