FreeNAS sending alert mails although alert frequency is set to “never”

The settings:

  System → Alert Settings → Scrub Finished → Set Frequency: NEVER
  System → Alert Settings → Scrub Started → Set Frequency: NEVER
  System → Alert Settings → Replication Succeeded → Set Frequency: NEVER

Under the alerts menu (the bell icon) the alerts still show up:

INFO
Replication "tank/foo" succeeded.
…

INFO
Replication "tank/bar" succeeded.
…

INFO
Scrub of pool 'freenas-boot' finished.
…

INFO
Scrub of pool 'freenas-boot' started.
…

WARNING
Certificate 'freenas-pre-certui' is expiring within -2261 days.
…

And every day FreeNAS sends out status emails:

Current alerts:
* Device: /dev/ada1, 1 Currently unreadable (pending) sectors.
* Device: /dev/ada1, new Self-Test Log error at hour timestamp 47042.
* Scrub of pool 'freenas-boot' started.
* Scrub of pool 'freenas-boot' finished.
* Certificate 'freenas-pre-certui' is expiring within -2261 days.
* Replication "tank/foo" succeeded.
* Replication "tank/bar" succeeded.
…

The unreadable sector notice is the one I want to receive. But FreeNAS does display the scrub and replication alerts in the alert menu (bell icon) as well as the notifications via email, although the frequency is set to NEVER.

Frequency=NEVER means to never notify about those particular alerts, neither in the GUI (bell icon), nor via email as far as I understand. The reasoning is that the user should be able to fine tune the alerts to only include relevant information and remove unneeded noise.