Based on my experiences, live.com (Hotmail) is one of the most difficult destinations to deliver email to. Despite following every single guideline they publish, our mail was routinely marked as spam. I think your problems are probably not related to the netblock you're using, but instead are related to Microsoft's over-aggressive spam filters. What we eventually did, on many peoples' recommendation, was to sign up with a "reputation service", like ReturnPath (http://www.returnpath.com/). For a fee, they will tell Microsoft that you're good people, and not spammers (yes, that's really all that they do, but it works). Is it corrupt? Yes, probably. But that seems to be the price to pay if you want to deliver mail to Hotmail, as nothing else we've tried seemed to help. Good luck! Adam On Wed, Feb 6, 2013 at 6:05 PM, Bertrand MAUJEAN <bmaujean@rmi.fr> wrote:
Hello,
We received an allocation starting at 128.127.128.0 a few years ago. It’s quite pleasant for mnemonic reasons, but we face serious outgoing SMTP problems toward live.com services, since the day we installed the first SMTP server with one of theses addresses.
Microsoft publish some recommendations (http://mail.live.com/mail/policies.aspx), but even following theses recommendations carefully we cannot solve our problem.
We tried to contact MS directly, without any success (postmaster, hostmaster, contact in routing database, peering contact…), but they seems pretty autistic (either no answer or pointing us the already known web site).
Tests have been conducted using IP address that did not send any packet for several years (cannot be listed as spammer).
Problem is only for our block in 128/8 (we have a lot of other). This block is not as European as other (ARIN administered), but RIPE allocated to us from it.
Does someone have similar issues with 128/8 ? Does someone know the good contact ?
Thank you,
Regards,
Bertrand
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