Why all this- Undeliverable Mail

[Andrew Mathews]

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Douglas J Hunley wrote:
| Andrew Mathews shocked and awed us all by speaking:
|
|>FWIW- I have yet to receive any of these attachments. I'm running
|>MIMEDefang/Clamav/Sendmail same as the list.
|
|
| and you're not having the occasional .pif file make it past MD (like we've
| been discussing on the MD list for a while now)?
| --
| Douglas J Hunley (doug at hunley.homeip.net) - Linux User #174778
| http://doug.hunley.homeip.net && http://www.linux-sxs.org

Nope. I haven't received any attachments. MIMEDefang has been deleting all the
.pif's, regardless. No upstream filtering is going on either. (yeah, I've been
following the MD thread on this, but I have a pretty standard config under
2.60-cvs) Relevant defang filter below:

# This procedure returns true for entities with bad filenames.
sub filter_bad_filename ($) {
~    my($entity) = @_;
~    my($bad_exts, $re);

~    # Bad extensions
~    $bad_exts = '(ade|adp|app|asd|asf|asx|bas|bat|chm|cmd|com|cpl|crt|dll|exe|fxp|h
lp|hta|hto|inf|ini|ins|isp|jse?|lib|lnk|mdb|mde|msc|msi|msp|mst|ocx|pcd|pif|prg|reg
|scr|sct|sh|shb|shs|sys|url|vb|vbe|vbs|vcs|vxd|wmd|wms|wmz|wsc|wsf|wsh|\{)';

~    # Do not allow:
~    # - curlies
~    # - bad extensions (possibly with trailing dots) at end or
~    #   followed by non-alphanum
~    $re = '\.' . $bad_exts . '\.*([^-A-Za-z0-9_.,]|$)';
~    return re_match($entity, $re);
}

- --
Andrew Mathews
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~  1:56pm  up 143 days, 22:45, 22 users,  load average: 2.52, 1.90, 1.53
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You can create your own opportunities this week.  Blackmail a senior executive.
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