No error output for too long notices submitted by mail

I send an email to $Rnd@identi.ca to have it posted as a new notice (replacing $Rnd with my personal "Random string", of course).

Body of the email:
This is not going to work, since the text in this email body for a new
notice is more than 140 chars. But it "silently" dies with no command
output at all :(

Bounce text:

********************************************************************************

This is the mail system at host smtp.statusnetinc.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

(expanded from <$Rnd@identi.ca>): Command
died with status 1: "/usr/bin/php /var/www/statusnet/scripts/maildaemon.php
-sidenti.ca". Command output:

Final-Recipient: rfc822; identica-input@identi.ca
Original-Recipient: rfc822;$Rnd@identi.ca
Action: failed
Status: 5.3.0
Diagnostic-Code: X-Postfix; Command died with status 1: "/usr/bin/php
/var/www/statusnet/scripts/maildaemon.php -sidenti.ca". Command output:

---------- Forwarded message ----------
From: Alexander Skwar <***@skwar.me>
To: identi ca <$Rnd@identi.ca>
Date: Wed, 8 Jun 2011 10:39:46 +0200
Subject: No command output?!?
This is not going to work, since the text in this email body for a new
notice is more than 140 chars. But it "silently" dies with no command
output at all :(

********************************************************************************

I'm concerned about the

********************************************************************************
Diagnostic-Code: X-Postfix; Command died with status 1: "/usr/bin/php
/var/www/statusnet/scripts/maildaemon.php -sidenti.ca". Command output:

********************************************************************************

After command output, it should've printed something like "more than 140c".

And, actually, it should generate a NICE looking error message. Not something
as cryptic as such a bounce message...