Sending alert to client after quota has reached 100%

Hello all, I hope you are doing well.

In regards to the quota_warning configuration, more specifically when an email is sent to the user when quota has passed a certain percentage, i.e.:

quota_warning = <limit configuration> <quota-warning socket name> <parameters> #quota_warning2 = ... #quota_warning3 = ..etc..

Is it possible to communicate with the client by sending an ALERT IMAP message to stdout much like post-login scripting, rather than sending an email to the user?

i.e:

#!/bin/sh

# Message goes to stdout printf "* OK [ALERT] This is an alert\r\n" exec "$@"

Thank you.