OSEC

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ERROR :: Undeliverable Mail Returned To Sender

From: Ki Song (kiknifecenter.com)
Date: Wed Oct 31 2007 - 12:45:58 CDT


One of our users noticed that he wasn't getting any messages all day today.
Sending a test message to that user, I immediately received an Undeliverable
Mail Returned To Sender email message with the following contents:

<testusermail.knifecenter.com> (expanded from <testuserknifecenter.com>):
can't
    create user output file. Command output: /bin/sh: let: HD_QUOTA=*1024:
    syntax error: operand expected (error token is "*1024") /bin/sh: line 1:
[:
    !=: unary operator expected procmail: Error while writing to
    "/var/mail/testuser"

I suspect it may be because the HD_QUOTA has been reached, but I'm not sure.

What could be causing this error?