Esta informacion es mas detallada acerca de lo que se obtiene cuando tengo un mensaje generado automaticamente por el relay_host:

Esto es lo que recibo:

fetchmail: 6.3.6 querying Carlos (protocol POP3) at Fri Dec 28 14:43:30 2007: poll started Trying to connect to 192.168.24.26/110...connected. fetchmail: POP3< +OK dovecot ready. fetchmail: POP3> CAPA fetchmail: POP3< +OK fetchmail: POP3< CAPA fetchmail: POP3< TOP fetchmail: POP3< USER fetchmail: POP3< UIDL fetchmail: POP3< RESP-CODES fetchmail: POP3< SASL PLAIN fetchmail: POP3< . fetchmail: 192.168.24.26: opportunistic upgrade to TLS failed, trying to continue. fetchmail: POP3> USER wilian05012 fetchmail: POP3< +OK fetchmail: POP3> PASS * fetchmail: POP3< +OK Logged in. fetchmail: POP3> STAT fetchmail: POP3< +OK 1 4087 1 message for wilian05012 at Carlos (4087 octets). fetchmail: POP3> LIST 1 fetchmail: POP3< +OK 1 4087 fetchmail: POP3> RETR 1 fetchmail: POP3< +OK 4087 octets reading message wilian05012@192.168.24.26:1 of 1 (4087 octets) Trying to connect to 127.0.0.1/25...connected. fetchmail: SMTP< 220 gandalf ESMTP Postfix fetchmail: SMTP> EHLO gandalf fetchmail: SMTP< 250-gandalf fetchmail: SMTP< 250-PIPELINING fetchmail: SMTP< 250-SIZE 10240000 fetchmail: SMTP< 250-VRFY fetchmail: SMTP< 250-ETRN fetchmail: SMTP< 250-ENHANCEDSTATUSCODES fetchmail: SMTP< 250-8BITMIME fetchmail: SMTP< 250 DSN fetchmail: SMTP> MAIL FROM:MAILER-DAEMON@192.168.24.26 SIZE=4087 fetchmail: SMTP< 501 5.1.7 Bad sender address syntax fetchmail: SMTP error: 501 5.1.7 Bad sender address syntax fetchmail: SMTP> RSET fetchmail: SMTP< 250 2.0.0 Ok .. flushed fetchmail: POP3> DELE 1 fetchmail: POP3< +OK Marked to be deleted. fetchmail: POP3> QUIT fetchmail: POP3< +OK Logging out, messages deleted. fetchmail: SMTP> QUIT fetchmail: SMTP< 221 2.0.0 Bye fetchmail: 6.3.6 querying Carlos (protocol POP3) at Fri Dec 28 14:43:32 2007: poll completed fetchmail: normal termination, status 0