On Mon, 30 Mar 2015 21:34:02 +0200 Reindl Harald <h.rei...@thelounge.net> wrote:
> one reason are the genius MS Exchange setips with a spamfilter in > front, set the spamfilter IP to "completly trusted" and by > incompetence in that moment also disable the address verification > from the spamfilter Recipient verification is disabled by default in Exchange, and it's almost impossible to ENable it in Exchange 2013. :( Microsoft-- We've had to play ghastly tricks to catch bounces from our Exchange-using customers and use heuristics to decide whether or not they're legit. It's the only way we can stay off backscatterer.org Regards, David.
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