Ticket mesa de ayuda

ESTA ES LA UNICA EVIDENCIA QUE POSEO DE LA MESA DE AYUDA
Hi. This is the qmail-send program at yahoo.com.I'm afraid I wasn't able to deliver your message to the following addresses.This is a permanent error; I've given up. Sorry it didn't work out.<mesadeayuda@sena.edu.co>:Sorry, I wasn't able to establish an SMTP connection. (#4.4.1)I'm not going to try again; this message has been in the queue too long.