Hello all,
First of all, I would like to extend thanks to Jason Haar and the
community for such wonderful software.
I have been running qmail scanner for a while, and I had the idea of using
it to add hashcash headers to outgoing emails. I got most of the way
through creating the code to do this when I realized spamassassin (with
some configuration) might already have a means of doing this. Is this
indeed possible? If it is not, is anyone interested in this
functionality?
I am just going to throw the additional function I added to
qmail-scanner-queue.pl here at the bottom of the email to invite comment,
as I don't want to create a patch if I someone is going to tell me I don't
need to.
This function is activated by adding "hashcash" to the @scanner_array
variable.
sub hashcash {
my $dohashcash = "1";
my $addhashcashheader = "1";
my $hashcashcmd = "/usr/bin/hashcash -m -X ";
if ($dohashcash) {
&debug("Starting HASHCASH creation function");
#Don't bother if this is going to be quarantined
return if ($quarantine_event);
#grab all addresses that are not bound for this server
my ($hashaddr,$addr,$dom) = "";
# is this a safe way to split? It works so far for my testcases...
my @addrlist = split(/,/, $recips);
foreach $addr (@addrlist) {
foreach $dom (@local_domains_array) {
if (!($addr =~ /$dom$/i)) {
$hashaddr .= $addr . " ";
}
}
}
# only run hashcash if we have (an) address(es) not bound for this
server
if ($hashaddr && $addhashcashheader) {
&debug("HASHCASH addresses: $hashaddr");
my $hashheaders = `$hashcashcmd $hashaddr`;
&debug("HASHCASH headers: $hashheaders");
}
# insert hash headers into email...
}
}
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