Send a notification letter for every operation

Yesterday, I set the backup completion notification, but I don’t know why the notification is mailed in every step. Is there a problem with my settings?
My settings are as follows:
(Ver:Duplicati - 2.0.6.3_beta_2021-06-17)

--send-mail-from=xxx@yyy.zzz
--send-mail-level=Warning,Error,Fatal
--send-mail-password=*******
--send-mail-subject=xxx 的 %backup-name% 備份報告(狀態:%PARSEDRESULT% %OPERATIONNAME%)
--send-mail-to=xxx@yyy.zzz
--send-mail-url=smtp://yyy.zzz:25/?starttls=never
--send-mail-username=xxx
--accept-any-ssl-certificate=true
--send-mail-any-operation=true

The video is my process

Hello and welcome!

Remove that option if you only want notifications for Backup operations.

Thank you from the bottom of my heart