Problem {Dangerous Content?}

[infolistas listas]

For only one specific user I'm getting this message.

EX: user1 send mail to user10 and user10 gets this message, but for all
others users the mail arrives with no problem.

Warning: This message has had one or more attachments removed
Warning: (not named).
Warning: Please read the "Attachment-Warning.txt" attachment(s) for more
information.

The sender is specified as allowed to send mail  max.attach.size.rules

from : user at mydomain.com.br -1
to : *@mydomain.com.br -1

also in filename.rules.conf and filetype

To: mydomain.com.br
FromOrTo: default /etc/MailScanner/filename.rules.conf

To: mydomain.com.br
FromOrTo: default /etc/MailScanner/filetype.rules.conf
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