- $rv .= qq{|<a\nhref="?$A">Atom feed</a>]};
- if ($ctx->{-inbox}->search->has_threadid) {
- $rv .= qq{\n\t\t\tdownload mbox.gz: } .
+ $rv .= qq{|<a\nhref="?$A">Atom feed</a>]\n};
+ $rv .= <<EOM if $x ne 't' && $q->{t};
+*** "t=1" collapses threads in summary, "full threads" requires mbox.gz ***
+EOM
+ $rv .= <<EOM if $x eq 'm';
+*** "x=m" ignored for GET requests, use download buttons below ***
+EOM
+ if ($ctx->{ibx}->isrch->has_threadid) {
+ $rv .= qq{${pfx}download mbox.gz: } .