logrotate cannot delete the files whose filename includes opening/closing bracket "[]"

Issue

The log files whose filename includes opening/closing bracket "[]" are not deleted even if " rotate 5" is set in the logrotate config file .

 messages-[192.168.100.100].log
 messages-[192.168.100.100].log-20160711
 messages-[192.168.100.100].log-20160712
 messages-[192.168.100.100].log-20160713
 messages-[192.168.100.100].log-20160714
 messages-[192.168.100.100].log-20160715
 messages-[192.168.100.100]-20160716

logrotate config file

/logs/messages*.log {
    copytruncate
    rotate 5
    ifempty
    dateext
    missingok
}