Emails not sent to gmail, hotmail & yahoo

My mail server is working fine with other emails(business emails) but emails is not sent to gmail, hotmail & yahoo i always receive "Undelivered Mail Returned to Sender"
I have configured DKIM and SPF also CSF firewall is off for gmail i receive:

Code: [Select]

host gmail-smtp-in.l.google.com[64.233.167.26] said:
    550-5.7.1 [52.28.109.232       7] Our system has detected that this message
    is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to
    Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1
    https://support.google.com/mail/?p=UnsolicitedMessageError 550 5.7.1  for
    more information. f6si10730560wmf.170 - gsmtp (in reply to end of DATA
    command)
For hotmail:

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host
    hotmail-com.olc.protection.outlook.com[104.47.14.33] said: 550 5.7.1
    Unfortunately, messages from [52.28.109.232] weren't sent. Please contact
    your Internet service provider since part of their network is on our block
    list (S3150). You can also refer your provider to
    http://mail.live.com/mail/troubleshooting.aspx#errors.
    [VI1EUR04FT056.eop-eur04.prod.protection.outlook.com] (in reply to MAIL
    FROM command)
Any suggestions?

It seems google and hotmail has blocked you from sending emails to their network, try contacting amazon on what the issue is, this is not a cwp issue.