$rv .= $subj . "\n";
$rv .= _th_index_lite($mid_raw, \$irt, $id, $ctx);
my @tocc;
- my $mime = $smsg->{mime};
+ my $mime = delete $smsg->{mime}; # critical to memory use
my $hdr = $mime->header_obj;
my $from = _hdr_names_html($hdr, 'From');
obfuscate_addrs($obfs_ibx, $from) if $obfs_ibx;