Mail not delivered when sent with the Unix "mail" command

Question

I am trying to send mail from the Unix command line with the "mail" command. Whenever I try to send an e-mail using a command of the form:
    mail -s 'This is the subject' <email address>
the mail message always ends up in subdirectories of the postfix "deferred" directory:
    /private/var/spool/postfix/deferred
It seems that the mail system runs for 60 seconds after an e-mail is sent and during that time I can run "mailq". If I do that I see something like the following:
-Queue ID- Size ----Arrival Time---- -Sender/Recipient-------
0195D1534C54 494 Sat Oct 18 11:48:13 [email protected]
(connect to broadpark.no\[217.13.4.67\]: Operation timed out)
[email protected]
040F51556A8C 334 Sat Oct 18 17:42:39 [email protected]
(connect to broadpark.no\[217.13.4.67\]: Operation timed out)
[email protected]
0C408153869D 1992 Sat Oct 18 12:26:48 MAILER-DAEMON
(connect to broadpark.no\[217.13.4.67\]: Operation timed out)
[email protected]
3B10415374FC 1992 Sat Oct 18 12:23:47 MAILER-DAEMON
(delivery temporarily suspended: connect to broadpark.no\[217.13.4.67\]: Operation timed out)
[email protected]
4509815374C0 342 Sat Oct 18 12:21:47 [email protected]
(delivery temporarily suspended: connect to broadpark.no\[217.13.4.67\]: Operation timed out)
[email protected]
4CFC915374C7 2050 Sat Oct 18 12:21:47 MAILER-DAEMON
(delivery temporarily suspended: connect to broadpark.no\[217.13.4.67\]: Operation timed out)
[email protected]
    +<lots of lines snipped out>+
It seems to be complaining that the connection timed out to broadpark.no\[217.13.4.67\], which is the domain of my ISP.
My outgoing SMTP mail server is:
    mail.broadpark.no\[217.13.6.35\]
Could it be that mail system is trying to connect to the wrong SMTP mailserver? If so, how can I fix this?
I should mention that mail flows perfectly in and out of my machine via the Mail.app program. I am only having problem sending mail down at the Unix command line level.
I had this working on OS X 10.4.x, but this is the first time I have tried this with Leopard.
Any help/suggestions would be greatly appreciated. Thanks in advance.

Answer 1

Perhaps I should have been a little bit clearer why I want to be able to send mail via my local mail/postfix system: I have several servers set up on my iMac, in particular:
    apache
    trac
I want these servers to be able to send mail to, e.g.,
    webmaster@localhost
    root@localhost
    trac@localhost
I have created aliases for these addresses in:
    /etc/postfix/aliases
(I have also executed "newaliases"). These aliases all point to my own user account on the same machine (my iMac).
Finally, I have a .forward file at the root level of my OS X account that forwards all local Unix mail to my normal e-mail account handled by my ISP.
This way, all local mail sent to "webmaster2, "root", "trac", etc., should be sent to my normal e-mail address that I monitor with Mail.app.
*This all worked perfectly with Mac OS X 10.4.x,* so I know it should be possible. However, I have only now just tried to set this up 10.5.x (Leopard) and, clearly, I am having problems.
Perhaps this motivation for wanting to send e-mail via the Unix mail system will help others understand my situation, and I hope someone can point me in the right direction. Thanks very much in advance.