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@aagjc.com.mx
Para: brenda.mtz@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@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