Emails not sent to gmail, hotmail & yahoo

[tamersherif]

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 Expand


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:

Code Select Expand


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?

[Arienas]

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.