Hotmail not receive my mail

Copper Contributor


I don't think if it's a good place for submit my question, but i try ;)

I send mail via a web server, it works everywhere except on hotmail and msn boxes, here is the error:

<>: host[] said: 550 5.7.1
Unfortunately, messages from [] weren't sent. Please contact
your Internet service provider since part of their network is on our block
list (S3140). You can also refer your provider to
[] (in reply to MAIL
FROM command)

I look other blog and see same error, but i don't think unique solution for resolve the problem. Regarding my mailings, they are signed (DKIM) and the server is authorized to send e-mails (SPF). And i've intuition that my ip is just bloqued on hotmail system, i already try to remove them, but don't result :(


Thank for you help.

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