[Mimedefang] differing spamassassin configs
Steffen Kaiser
skmimedefang at smail.inf.fh-bonn-rhein-sieg.de
Fri Jan 23 08:37:04 EST 2015
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On Thu, 22 Jan 2015, John Nemeth wrote:
> I've started looking at scanning outbound mail for spam. This
> is to prevent being added to RBLs. As part of this, I would like
> to be able to call spamassassin with different settings. All
> outbound mail is either coming from the same system or authenticated
> users, so when scanning outbound mail I don't want any RBLs being
> consulted. However, I still want RBLs to be consulted for inbound
> mail. I've looked at mimedefang.pl and don't see any easy way to
> do this. The only obvious thing is to set $SASpamTester to undef
> before each call to spamassassin. I'm wondering if a destructor
> function should be called or if this would result in a memory leak.
> Does anybody have any other suggestions?
Checkout the top of the mimedefang-filter
# The next lines force SpamAssassin modules to be loaded and rules
# to be compiled immediately. This may improve performance on busy
# mail servers. Comment the lines out if you don't like them.
if ($Features{"SpamAssassin"}) {
spam_assassin_init()->compile_now(1) if defined(spam_assassin_init());
# If you want to use auto-whitelisting:
# if (defined($SASpamTester)) {
# use Mail::SpamAssassin::DBBasedAddrList;
# my $awl = Mail::SpamAssassin::DBBasedAddrList->new();
# $SASpamTester->set_persistent_address_list_factory($awl) if defined($awl);
# }
}
Do this once for one config, save the $SASpamTester in yet another global
var, e.g. my_SA_inbound; undef $SASpamTester; do this for the second
config and save $SASpamTester into, say, my_SA_outbound
Now, before you scan, assign either my_SA_* to $SASpamTester.
However, if you have a large ruleset, you load it twice into memory. Also
look at $SALocalTestsOnly .
- --
Steffen Kaiser
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