The change-only determination is probably too difficult to be worth the effort. You can't compare files in RouterOS (string variables have definite maximum lengths) and there is no easy indicator for "date configuration last modified." Yeap, you're right. /system history is active only du...

Hi, I did it in another way, I remove the file before to create new one, but not after delay for mailing: /file remove [find name="email_bak.backup"]; /system backup save name=email_bak; :delay 5; /tool e-mail send file="email_bak.backup" to="xxxxx@gmail.com" from=yyyyy...