+ my ($arg, $link) = PublicInbox::Reply::mailto_arg_link($ibx, $hdr);
+
+ # mailto: link only works if address obfuscation is disabled
+ if ($link) {
+ $link = <<EOF;
+
+* If your mail client supports setting the <b>In-Reply-To</b> header
+ via mailto: links, try the <a
+href="$link">mailto: link</a></pre>
+EOF
+ }