Administrative Hinweise zu Qmail, Filter für .qmail

IFMIME

NAME

ifmime -- check the MIME types of an incoming email message

SYNOPSIS

ifmime {-r mime-type} {-a mime-type}

DESCRIPTION

ifmime scans the main body and all attachments for MIME type declarations. If no MIME type declaration is found in the message, or at least one of the MIME types is included in the list of acceptable MIME types (option -a), ifmime exits 100. Otherwise, if at least one MIME type of the message is in the list of to be rejected MIME types (option -r), ifmime exits 0. If none of the found MIME types is included in either list, ifmime exits 100.

In short, ifmime rejects all messages that include a MIME type of the r-list except if they find a MIME type that is included in the a-list.

Please note that case is not significant when MIME type specifications are compared.

EXAMPLE

This utility can be used within ~/.qmail scripts to filter out messages which are encoded in text/html:

   |bouncesaying 'Sorry, I do not accept text/html' ifmime -r text/html

However, if you want to accept messages that include any text in ``text/plain'' even if they include texts in ``text/html'' you should switch to:

   |bouncesaying 'Sorry, I do not accept text/html' \
      ifmime -r text/html -a text/plain

AUTHOR

Andreas Borchert

converted to HTML: 2006/03/29