--- /dev/null
+This should fix bug 7338, but the related commits were backported to
+the 3.4 branch as part of SpamAssassin bug 7231 (comment 13).
+
+--- a/lib/Mail/SpamAssassin/Dns.pm 2017/04/16 06:19:30 1791572
++++ b/lib/Mail/SpamAssassin/Dns.pm 2017/04/16 07:28:59 1791573
+@@ -171,7 +171,7 @@
+ if (substr($rule, 0, 2) eq "__") {
+ # don't bother with meta rules
+ } elsif ($answer->type eq 'TXT') {
+- # txtdata returns a non- zone-file-format encoded result, unlike rdatastr;
++ # txtdata returns a non- zone-file-format encoded result, unlike rdstring;
+ # avoid space-separated RDATA <character-string> fields if possible,
+ # txtdata provides a list of strings in a list context since Net::DNS 0.69
+ $log = join('',$answer->txtdata);
+@@ -215,11 +215,13 @@
+
+ my $qname = $question->qname;
+
+- # txtdata returns a non- zone-file-format encoded result, unlike rdatastr;
++ # txtdata returns a non- zone-file-format encoded result, unlike rdstring;
+ # avoid space-separated RDATA <character-string> fields if possible,
+ # txtdata provides a list of strings in a list context since Net::DNS 0.69
+ #
++ # rdatastr() is historical/undocumented, use rdstring() since Net::DNS 0.69
+ my $rdatastr = $answer->UNIVERSAL::can('txtdata') ? join('',$answer->txtdata)
++ : $answer->UNIVERSAL::can('rdstring') ? $answer->rdstring
+ : $answer->rdatastr;
+ if (defined $qname && defined $rdatastr) {
+ my $qclass = $question->qclass;
+@@ -267,8 +269,13 @@
+ my $answ_type = $answer->type;
+ # TODO: there are some CNAME returns that might be useful
+ next if ($answ_type ne 'A' && $answ_type ne 'TXT');
+- # skip any A record that isn't on 127/8
+- next if ($answ_type eq 'A' && $answer->rdatastr !~ /^127\./);
++ if ($answ_type eq 'A') {
++ # Net::DNS::RR::A::address() is available since Net::DNS 0.69
++ my $ip_address = $answer->UNIVERSAL::can('address') ? $answer->address
++ : $answer->rdatastr;
++ # skip any A record that isn't on 127.0.0.0/8
++ next if $ip_address !~ /^127\./;
++ }
+ for my $rule (@{$rules}) {
+ $self->dnsbl_hit($rule, $question, $answer);
+ }
+@@ -284,11 +291,13 @@
+ sub process_dnsbl_set {
+ my ($self, $set, $question, $answer) = @_;
+
+- # txtdata returns a non- zone-file-format encoded result, unlike rdatastr;
++ # txtdata returns a non- zone-file-format encoded result, unlike rdstring;
+ # avoid space-separated RDATA <character-string> fields if possible,
+ # txtdata provides a list of strings in a list context since Net::DNS 0.69
+ #
+- my $rdatastr = $answer->UNIVERSAL::can('txtdata') ? join('',$answer->txtdata)
++ # rdatastr() is historical/undocumented, use rdstring() since Net::DNS 0.69
++ my $rdatastr = $answer->UNIVERSAL::can('txtdata') ? join('',$answer->txtdata)
++ : $answer->UNIVERSAL::can('rdstring') ? $answer->rdstring
+ : $answer->rdatastr;
+
+ while (my ($subtest, $rule) = each %{ $self->{dnspost}->{$set} }) {
+--- a/lib/Mail/SpamAssassin/Plugin/AskDNS.pm 2017/04/16 06:19:30 1791572
++++ b/lib/Mail/SpamAssassin/Plugin/AskDNS.pm 2017/04/16 07:28:59 1791573
+@@ -140,7 +140,7 @@
+ multiple character-strings (as defined in Section 3.3 of [RFC1035]), these
+ strings are concatenated with no delimiters before comparing the result
+ to the filtering string. This follows requirements of several documents,
+-such as RFC 5518, RFC 4408, RFC 4871, RFC 5617. Examples of a plain text
++such as RFC 5518, RFC 7208, RFC 4871, RFC 5617. Examples of a plain text
+ filtering parameter: "127.0.0.1", "transaction", 'list' .
+
+ A regular expression follows a familiar perl syntax like /.../ or m{...}
+@@ -539,7 +539,7 @@
+ @answer = ( undef );
+ }
+
+- # NOTE: $rr->rdatastr returns the result encoded in a DNS zone file
++ # NOTE: $rr->rdstring returns the result encoded in a DNS zone file
+ # format, i.e. enclosed in double quotes if a result contains whitespace
+ # (or other funny characters), and may use \DDD encoding or \X quoting as
+ # per RFC 1035. Using $rr->txtdata instead avoids this unnecessary encoding
+@@ -566,19 +566,26 @@
+ # special case, no answer records, only rcode can be tested
+ } else {
+ $rr_type = uc $rr->type;
+- if ($rr->UNIVERSAL::can('txtdata')) { # TXT, SPF
+- # join with no intervening spaces, as per RFC 5518
++ if ($rr_type eq 'A') {
++ # Net::DNS::RR::A::address() is available since Net::DNS 0.69
++ $rr_rdatastr = $rr->UNIVERSAL::can('address') ? $rr->address
++ : $rr->rdatastr;
++ if ($rr_rdatastr =~ m/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\z/) {
++ $rdatanum = Mail::SpamAssassin::Util::my_inet_aton($rr_rdatastr);
++ }
++
++ } elsif ($rr->UNIVERSAL::can('txtdata')) {
++ # TXT, SPF: join with no intervening spaces, as per RFC 5518
+ if ($txtdata_can_provide_a_list || $rr_type ne 'TXT') {
+ $rr_rdatastr = join('', $rr->txtdata); # txtdata() in list context!
+ } else { # char_str_list() is only available for TXT records
+ $rr_rdatastr = join('', $rr->char_str_list); # historical
+ }
+ } else {
+- $rr_rdatastr = $rr->rdatastr;
+- if ($rr_type eq 'A' &&
+- $rr_rdatastr =~ m/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\z/) {
+- $rdatanum = Mail::SpamAssassin::Util::my_inet_aton($rr_rdatastr);
+- }
++ # rdatastr() is historical, use rdstring() since Net::DNS 0.69
++ $rr_rdatastr = $rr->UNIVERSAL::can('rdstring') ? $rr->rdstring
++ : $rr->rdatastr;
++ utf8::encode($rr_rdatastr) if utf8::is_utf8($rr_rdatastr);
+ }
+ # dbg("askdns: received rr type %s, data: %s", $rr_type, $rr_rdatastr);
+ }
+--- a/lib/Mail/SpamAssassin/Plugin/URIDNSBL.pm 2017/04/16 06:19:30 1791572
++++ b/lib/Mail/SpamAssassin/Plugin/URIDNSBL.pm 2017/04/16 07:28:59 1791573
+@@ -1009,10 +1009,9 @@
+ dbg("uridnsbl: complete_a_lookup aborted %s", $ent->{key});
+ return;
+ }
+-
+ dbg("uridnsbl: complete_a_lookup %s", $ent->{key});
+- my @answer = $pkt->answer;
+ my $j = 0;
++ my @answer = $pkt->answer;
+ foreach my $rr (@answer) {
+ $j++;
+ my $str = $rr->string;
+@@ -1099,7 +1098,9 @@
+ my $rr_type = $rr->type;
+
+ if ($rr_type eq 'A') {
+- $rdatastr = $rr->rdatastr;
++ # Net::DNS::RR::A::address() is available since Net::DNS 0.69
++ $rdatastr = $rr->UNIVERSAL::can('address') ? $rr->address
++ : $rr->rdatastr;
+ if ($rdatastr =~ m/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/) {
+ $rdatanum = Mail::SpamAssassin::Util::my_inet_aton($rdatastr);
+ }