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-rw-r--r--extensions/SecureMail/Extension.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/SecureMail/Extension.pm b/extensions/SecureMail/Extension.pm
index d3dc023f6..0219ac3ba 100644
--- a/extensions/SecureMail/Extension.pm
+++ b/extensions/SecureMail/Extension.pm
@@ -644,7 +644,7 @@ sub _insert_subject {
elsif ($content_type =~ /^text\/html/) {
my $tree = HTML::Tree->new->parse_content($part->body_str);
my $body = $tree->look_down(qw(_tag body));
- $body->unshift_content(['h1', "Subject: $subject"], ['br']);
+ $body->unshift_content(['strong', "Subject: $subject"], ['br']);
$part->body_str_set($tree->as_HTML);
$tree->delete;
}