our $MID_RE = qr!([^/]+)!;
our $END_RE = qr!(T/|t/|t\.mbox(?:\.gz)?|t\.atom|raw|)!;
our $ATTACH_RE = qr!([0-9][0-9\.]*)-($PublicInbox::Hval::FN)!;
-our $OID_RE = qr![a-f0-9]{7,40}!;
+our $OID_RE = qr![a-f0-9]{7,}!;
sub new {
my ($class, $pi_config) = @_;