[CentOS-es] regreso de email

[VICTOR MANUEL VARGAS GONZALEZ]

que tal alguien me puede apoyar en por que me regresa este email , uso sendmail ,



-------- Mensaje reenviado --------
Asunto:  Returned mail: see transcript for details
Fecha:  Tue, 10 May 2016 11:49:12 -0500
De:  Mail Delivery Subsystem <MAILER-DAEMON en aagjc.com.mx>

Para:  brenda.mtz en aagjc.com.mx

The original message was received at Tue, 10 May 2016 11:49:09 -0500
from [192.168.0.181]

   ----- The following addresses had permanent fatal errors -----
<josefina.flores en symetry.com.mx>
    (reason: 552 5.2.0 Invalid 7bit DATA)

   ----- Transcript of session follows -----
... while talking to smtp.secureserver.net.:
>>> DATA
<<< 552 5.2.0 Invalid 7bit DATA
554 5.0.0 Service unavailable