Problem shop e-mail - Mail delivery failed: returning message to sender

[gustavo07]

Hello,

 

I have a website PrestaShop™ 1.5.6.1.

 

I´ve never had problemes with e-mail but 2 or 3 days ago all e-mail that the shop send, are automatically returned (registration, status orders...).

 

Example message:

 

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

xxxxxxx@xxxxx.com
SMTP error from remote mail server after end of data:
host p3nlsmtpcp-v01.prod.phx3.gdg [72.167.191.78]:
552 5.2.0 kZW81o00v2tBHog01 :: CPANEL:: Message rejected for spam or virus content ::
Please include this entire message when contacting support ::
v=2.1 cv=IegJWAaa c=1 sm=1 tr=0 p=nkx2njG8pI4A:10 p=0a6JWrinuonKoZg_:18 a=AMUHZXgAIFLGep19qKpRUg==:117 a=AMUHZXgAIFLGep19qKpRUg==:17 a=TZb1taSUAAAA:8 a=ueXq0mUYwjEA:10 a=Vmn1t9HfwFoA:10 a=LJdiDz5xSTwA:10 a=jPJDawAOAc8A:10 a=7Gb2ztApn8kA:10 a=7708ip_OBqkA:10 a=Tgyk-dZwAAAA:8 a=WOdNHrPArWdhvbVnq6wA:9 a=c4qN3uKSCbIA:10 a=iJA-CVdCekYA:10 a=6oSWInc8AAAA:8 a=gNY43X6tI1wrFFYZaS0A:9 a=QEXdDO2ut3YA:10 a=SSmOFEACAAAA:8 a=OvrQo8WXQDXtN_4amwMA:9 a=r2bYisWhWRyOeO7i:21 a=_W_S_7VecoQA:10 a=WY5bWbr2GvsA:10 a=xhwZwJ7kP247EWjXvy0A:9 a=KQqxNPgzF0kA:10 a=R-0UT98PFu0A:10 ::
100.00

 

 

Can someone help me?

 

Thanks.