[imp] 406 error when using report spam feature

[Anand Thakur]

I am trying out the spam reporting feature of IMP and am getting a 406 error
after clicking the link.

I see the following in my Apache error log:

[Wed Jan 25 13:31:14 2006] [error] [client xxx.xxx.xxx.xxx] malformed header
from script. Bad header=1 message(s) exami
ned.: /home/mypuppet/public_html/horde/imp/mailbox.php

I am using "spamassassin -r" as my reporting program.  It looks like the
message "1 message(s) examined" is being generated by SpamAssassin and is
being sent out before a Content-Type header can be sent out.

I am using the following:
Horde 3.0.9
IMP 4.0.4
PHP 4.4.2
Apache 1.3.34

Running on a Redhat Linux machine using cPanel.

Anyone ran into this and have a fix?  I don't see an commandline option for
spamassassin to suppress this output, at least not without modifying the
code.

Thanks,
Anand