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-rw-r--r--lib/PublicInbox/Eml.pm8
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/PublicInbox/Eml.pm b/lib/PublicInbox/Eml.pm
index 485f637a..8b999e1a 100644
--- a/lib/PublicInbox/Eml.pm
+++ b/lib/PublicInbox/Eml.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 #
 # Lazy MIME parser, it still slurps the full message but keeps short
@@ -144,6 +144,7 @@ sub header_raw {
         my $re = re_memo($_[1]);
         my @v = (${ $_[0]->{hdr} } =~ /$re/g);
         for (@v) {
+                utf8::decode($_); # SMTPUTF8
                 # for compatibility w/ Email::Simple::Header,
                 s/\s+\z//s;
                 s/\A\s+//s;
@@ -359,14 +360,15 @@ sub header_set {
         $pfx .= ': ';
         my $len = 78 - length($pfx);
         @vals = map {;
+                utf8::encode(my $v = $_); # to bytes, support SMTPUTF8
                 # folding differs from Email::Simple::Header,
                 # we favor tabs for visibility (and space savings :P)
                 if (length($_) >= $len && (/\n[^ \t]/s || !/\n/s)) {
                         local $Text::Wrap::columns = $len;
                         local $Text::Wrap::huge = 'overflow';
-                        $pfx . wrap('', "\t", $_) . $self->{crlf};
+                        $pfx . wrap('', "\t", $v) . $self->{crlf};
                 } else {
-                        $pfx . $_ . $self->{crlf};
+                        $pfx . $v . $self->{crlf};
                 }
         } @vals;
         $$hdr =~ s!$re!shift(@vals) // ''!ge; # replace current headers, first