[CentOS-es] Postfix y notificaciones de correo no entregable desde su relay_host

[William Alexander Brito Vinas]

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 en 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 en 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