Hi Julio,

>       ----- The following addresses had permanent fatal errors -----
>    <[3][EMAIL PROTECTED]>
>        (reason: 553 5.3.5 system config error)
>       ----- Transcript of session follows -----
>    553 5.3.5 ns2.c-com.net.ve. config error: mail loops back to me (MX
>    problem?)
>    554 5.3.5 Local configuration error

Sendmail has detected a mail loop and justly refused to deliver the mail
(I've seen mail loops do very ugly things to a perfectly nice machine).

Now just why this particular mail would enter a loop is unclear. From DNS
lookups, one sees that the machine to deliver the @enertec.com.ve mail to
is on the same network (or at least, with an adress very close to -
whois.networksolutions.com is too busy right now to answer queries) as
ns2.c-com.net.ve, which is the machine attempting to deliver the mail. This
machine is coincidently also a DNS server for c-com.net.ve. 
All of the above gives rise to the suspicion that perhaps the machines
mail.truevision.net (MX for enertec.com.ve) and ns2.c-com.net.ve are in
fact the same machine with differnet network interfaces (or one network
interface with some form of IP overloading). That could explain the above
error and is quite easy to resolve: just tell sendmail on ns2.c-com.net.ve
to deliver mail for enertec.com.ve locally by adding this domain 
/etc/mail/sendmail.cw (or wherever you keep your sendmail config files).

CU

Bart

-- 
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Bart Vetters           | [EMAIL PROTECTED]
KMI - IRM              | Tel.: +32.2.373.04.77 
Ringlaan 3             | Fax.: +32.2.373.06.57
1180 Brussel           | Pubkey ID: C182DF19 
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