You need to define a callback 
sub listCallback {
  my ($imap, $list) = @_;
  print($list->mailbox(), "\n");
}

my %options = ();
my $imap = new Net::IMAP($host, %options);
$imap->login($user, $pass);
$imap->set_untagged_callback('list', \&listCallback);
my $response = $imap->list('', 'INBOX.*');
# function listCallback prints mailbox names

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In reply to Re: IMAP & File Sizes by bad_till
in thread IMAP & File Sizes by pileofrogs

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