Email get rejected

May 5 02:06:55 box postfix/smtp[5120]: A4A1714070C: to=user@domain.com, relay=apac.mxlogicmx.net.domain.com.my[208.81.65.2]:25, delay=1.4, delays=0.35/0.04/0.59/0.39, dsn=5.0.0, status=bounced (host apac.mxlogicmx.net.domain.com[208.81.65.2] said: 554 Denied [CS] [ffd58455.0.434874.00-2391.771617.s14p02m012.mxlogic.net] (Mode: normal) (in reply to end of DATA command))

i keep receving this error when sending email to this domain. something wrong with my setup?

Seems like mail was rejected by Mxlogic / Mcafee because of the content of the message.

Some useful informations:
https://support.mcafeesaas.com/MCAFEE/_cs/AnswerDetail.aspx?sSessionID&aid=155
http://www.mailchannels.com/blog/2013/10/mxlogic-554-denied-cs/

its just normal email.
before this, using cpanel, no problem. same email, using mailinabox system, get rejected.