For future enhancements:
1. Is it possible to hide passwords in lines such as:
username USER password 7 08116D7D3A2E2A2536
crypto isakmp key TEST address 0.0.0.0 0.0.0.0
in "Config Change Report" which go through mail?
2. Is it possible sending mail "Config Change Report" with empty content, but attach file zip,rar securing with password (which include .pdf with "Config Change Report")?