Warning: E-mail error detected

[menezes]

Customers are receiving the following message when sending an email with an attached file, any idea about how to solve this problem?

========================================
Our virus detector failed to completely analyse a message you sent:-
To: <someone>
Subject: Planilha
Date: Wed Jan 18 17:40:34 2012
Any parts of the message that could not be analysed will not have been
delivered.

If you are using Microsoft Outlook, we strongly recommend you change your
outgoing message format from "Rich Text" to "HTML" or "Plain Text".

1) Click on the "Tools" menu and choose "Options..."
2) Go to the "Mail Format" tab
3) For message format, select "HTML" or "Plain text"
4) Click OK

The virus detector said this about the message:
Report: Report: MailScanner: Message attempted to kill MailScanner


--
MailScanner
Email Virus Scanner

[jestep]

You figure this out at all. We started getting this on a new installation with .xlsx attachments. Sender is whitelisted. Tried reinstalling clam and still getting the errors.

[jestep]

After some more research, we cannot get any Office 2007 and up documents through. All xlsx and docx and pptx fail. They hang in queue for about an hour and then fail with the same message you get. This is a brand new Mailscanner installation. We copied the exact configuration from our previous server into this one.

[jestep]

Change Maximum Archive to 0 and it will work.

It looks like it is a bug in cpan Archive::Zip version 1.30. There is a bug report on it (https://rt.cpan.org/Public/Bug/Display.html?id=61930) but no updated version. However, I manually downgraded to version 1.29 and 1.28 and could not get messages through so I'm not sure.