Rules for letters with attachments

Jerry Benton jerry.benton at
Thu Feb 27 11:46:28 GMT 2014


Notify Senders Of Viruses = no

As for clamav not picking up the infection, I would run a MailScanner
--lint to make sure you are not getting lstat() errors. If you are, you
need to check permissions and validate what user clamd is running as.

On Thu, Feb 27, 2014 at 11:44 AM, Valentin Laskov <it at> wrote:

> Hi all,
> Recently my mail servers receive many emails with .exe files attached.
> These files are actually viruses but ClamAV still does not
> recognize them.
> MailScanner puts exe files in quarantine, sends the letter without the
> file to the recipient and sends notice letter to the sender
> about the attached file removal. Notice returns with "User unknown"
> because the sender's e-mail address does not exist.
> Here's why:
> 1. How can I configure MailScanner NOT to send any information to
> recipients of these letters?
> Rules for letters with executable files attached to be like this:
> quarantine = yes
> send report to sender = yes
> send report to recipient = no
> send cleaned message to recipient = no
> 2. Is it possible for MailScanner to provide this new feature:
>   - email with restricted attachment arrived;
>   - MailScanner puts the whole letter in quarantine and sends following
> notice to the sender:
> "If you are the real sender of the letter to ......... with ....... file
> attached, please respond to this letter without any
> changes. If you are not the sender please do nothing.
> If you are the sender, please confirm, otherwise your original letter will
> be deleted entirely."
>   - If MailScanner receive "User unknown" for the notice letter, it
> deletes original letter immediately;
>   - If MailScanner does not receive confirmation, it (optionaly informs
> recipient for the letter with quarantined attached file like
> now) waits some days;
>   - If confirmation received MailScanner sends the original letter
> optionaly with or without attachment;
>   - If timeout of some days expired and no confirmation received,
> MailScanner deletes the letter.
> Regards!
> Valentin Laskov
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Jerry Benton
Mailborder Systems
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