Does anyone have a clue why hotmail is appearantly blocking certain IP ranges ?
I provided a new server for a customer in his own IP subnet which is a part of a /20 we announce, but for some reason all mail sent to @hotmail.com addresses disappears.
He has another server in a /24 we announce which is still part of another network and that works like a charm.
None of our subnets are blacklisted in any spamfilter I can find, so i'm a bit puzzeled on what's up here.
If any hotmail netadmin is reading this list, can you please check if 188.8.131.52/26 is blocked in any way (It's part of 184.108.40.206/20 originating from AS39556)
According to the mailserver logs all the mail is properly accepted by the hotmail relays, never to be seen again after that.
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