Undelivered Mail Returned to Sender

Hi
I tried to send a test email to my other email address which is a gmail address. It returned the following error:

This is the mail system at host freemail.byetcluster.com.

I’m sorry to have to inform you that your message could not
be delivered to one or more recipients. It’s attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

               The mail system

myjeewa@gmail.com: host gmail-smtp-in.l.google.com[64.233.184.27] said:
550-5.7.1 [185.27.134.22 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/answer/188131 for more information.
z193si1208692wme.98 - gsmtp (in reply to end of DATA command)
Reporting-MTA: dns; freemail.byetcluster.com
X-Postfix-Queue-ID: 7371013033AD
X-Postfix-Sender: rfc822; info@ytfproperties.rf.gd
Arrival-Date: Wed, 13 Apr 2016 09:16:41 -0400 (EDT)

Final-Recipient: rfc822; myjeewa@gmail.com
Original-Recipient: rfc822;myjeewa@gmail.com
Action: failed
Status: 5.7.1
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 [185.27.134.22 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/answer/188131 for
more information. z193si1208692wme.98 - gsmtp

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