is($lms->clear_src($imap, 1), 1, 'clear_src on IMAP');
is($lms->clear_src($maildir, \$fname), 1, 'clear_src on Maildir');
ok($lms->clear_src($imap, 1) == 0, 'clear_src again on IMAP');
ok($lms->clear_src($maildir, \$fname) == 0, 'clear_src again on Maildir');
is($lms->clear_src($imap, 1), 1, 'clear_src on IMAP');
is($lms->clear_src($maildir, \$fname), 1, 'clear_src on Maildir');
ok($lms->clear_src($imap, 1) == 0, 'clear_src again on IMAP');
ok($lms->clear_src($maildir, \$fname) == 0, 'clear_src again on Maildir');