None of my domains can send email to hotmail. Even when hotmail address sends email to to me, I can't reply it back. It doesn't even go to spam folder nor sent back. Hotmail totally ignores it and send to black hole I think. When I contacted hotmail about this issue, they did nothing other than giving me their SenderID web pages' URL. I looked there and everything looks fine. But still I can't send email to hotmail. I even put 1 of the web pages on 2. IP, just in case if IP was blacklisted, which didn't do any good either. Shortly: - None of my domains (on 2 IPs) can send email to hotmail. But they can receive email from everywhere, including hotmail. Also they can send email to everywhere other than hotmail. - I have SPF records for each domain. (tried SenderID wizard for different SPF records, too) - Exim seems fine, doesn't return email back nor gives an error. - I have reverse IP records, too. - Neither web mail nor PHP's mail function works to send email to hotmail, otherwise they work perfect. - Some of these domains sent mail to hotmail before, when they were hosted somewhere else. Neither hotmail nor DirectAdmin people could say anything about it. Any ideas?