I am currently using this script on a RB600 and runs smoothly.
/tool e-mail send server=192.168.1.1:25 from=XXX@XXXX.com file=email_backup.backup to=XXX@XXXX body=backup_mikrotik subject=[/system identity get name]
When I test it on a RB450g gives me this error in the log
"error sending email:error handling file"
Clarified that the backup file exists
What happens?