From d002f24a9648d1499a16ed4dec84f05c0f849740 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Sat, 11 Nov 2023 09:04:57 +0000 Subject: mda|learn|watch: support dropUniqueUnsubscribe config List-Unsubscribe headers with unique identifiers (such as those generated by our examples/unsubscribe.milter) should not end up in public archives. Add a new config knob to strip List-Unsubscribe headers if they have the `List-Unsubscribe-Post: List-Unsubscribe=One-Click' header. Unfortunately, this breaks DKIM signatures if the signature covers either of these List-Unsubscribe* headers. However, breaking DKIM is the lesser evil compared to any archive reader being able to stop archival by an independent archivist. As much as I would like this to be the default, it probably affects few users at the moment since very few mailing lists use unique identifiers in List-Unsubscribe (but that number has grown, recently). --- script/public-inbox-mda | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'script/public-inbox-mda') diff --git a/script/public-inbox-mda b/script/public-inbox-mda index cac819ac..04fd8aad 100755 --- a/script/public-inbox-mda +++ b/script/public-inbox-mda @@ -16,6 +16,8 @@ use strict; use Getopt::Long qw(:config gnu_getopt no_ignore_case auto_abbrev); my ($ems, $emm, $show_help); my $precheck = 1; +use PublicInbox::Import; +local $PublicInbox::Import::DROP_UNIQUE_UNSUB; # does this need a CLI switch? GetOptions('precheck!' => \$precheck, 'help|h' => \$show_help) or do { print STDERR $help; exit 1 }; @@ -47,6 +49,8 @@ my $key = 'publicinboxmda.spamcheck'; my $default = 'PublicInbox::Spamcheck::Spamc'; my $spamc = PublicInbox::Spamcheck::get($cfg, $key, $default); my $dests = []; +PublicInbox::Import::load_config($cfg, $do_exit); + my $recipient = $ENV{ORIGINAL_RECIPIENT}; if (defined $recipient) { my $ibx = $cfg->lookup($recipient); # first check -- cgit v1.2.3-24-ge0c7