Richard, I use a Perl hash to hold details of all whitelisted addresses, and check this before calls to contentious parts of the filter, e.g.:
At the top of the filter (i.e. globally):
# Addresses to allow regardless of origin
$IncomingWhitelist{'[EMAIL PROTECTED]'} = 1;
$IncomingWhitelist{'[EMAIL PROTECTED]'} = 1;
Then in the relevant parts of the filter (in this case :
# skip greylisting for selected users
my @senderparts = split(/@/, $Sender);
my $senderdom = $senderparts[1];
$senderdom =~ s/[<>]//g;
#md_syslog('debug',"Whitelist check - $Sender,$senderdom,$ip");
if (
(exists $IncomingWhitelist{lc($sender)}) ||
(exists $IncomingWhitelist{lc($senderdom)}) ||
( exists $LocalRelayAddrs{$ip}) )
{
md_syslog('info',"WhiteList - skip greylisting check,
Sender=$Sender,Dom=$senderdom, Addr=$ip");
return ('CONTINUE', "ok");
}
Or:
if ( (!exists $IncomingWhitelist{lc($Sender)}) &&
(filter_bad_filename($entity)) ) {
md_graphdefang_log('bad_filename', $fname, $type);
action_notify_administrator("A file called $fname from $Sender was
removed from an e-mail with subject | $subject | - quarantined.\n\n");
This has the advantage of keeping in virus scanning, SPAM filtering, or whatever
while allowing some addresses to skip some parts.
In addition, my ZIP file handling is fairly involved, as the only way to be sure
that a zip file is "safe" is to examine the contents in an intelligent manner.
See the attached code from "filter()" for details.
Best Wishes,
Paul.
__________________________________________________
Paul Murphy
Head of Informatics
Ionix Pharmaceuticals Ltd
418 Science Park, Cambridge, CB4 0PA
Tel. 01223 433741
Fax. 01223 433788
_______________________________________________________________________
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_______________________________________________________________________
zip_check.pl
Description: zip_check.pl
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