"Message contains NUL characters"

[Andrew Dietz]

Hello,

I use Cyrus-IMAPd 2.2.10 + Postfix 2.1.1 + SpamAssassin + Amavis +
Squirrelmail, all from RPM on a Fedora Core 2 box -- works great.

Recently I came across a message (successfully delivered to my mailbox) that
refused to copy to the Sent folder (a special folder created by Squirrelmail)
when I attempted to forward it. The error that consistently displayed was:

ERROR : Could not append message to INBOX/Sent.
Server responded: Message contains NUL characters

The message has a MIME attachment of type text/html, and upon inspecting the
file, discovered that it had been created with "Microsoft Word 10" and indeed
contained a null character (displayed in vi as "^@") at the very end (a M$
Word version of EOF??).

This issue seems related to an earlier problem I spotted when copying messages
local to Microsoft Outlook Express into an IMAP folder on a Cyrus server --
same occasional error message: "Message contains NUL characters", preventing
those messages from being copied to the server.

Naturally, I am inclined to allow messages with NUL characters to be
delivered, as bouncing legitimate messages to unsuspecting, technically
unsavvy senders is not an option.

How can I have Cyrus ignore NUL characters in messages?

Thanks in advance for any help  you can provide.


-- 
ANDREW DIETZ
Systems Administrator
Georgia Institute of Technology
Library and Information Center
704 Cherry Street
Atlanta, GA 30332-0900


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