dovecot - Apr 2021 - 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.

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> On 19/04/2021 18:36 Dan Conway <darkc0de at archnix6.net> wrote:
> 
> 
> 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.
>
Probably, but it will not be straight forward. My recommendation would be to set
some flag in your sql db (if you are using one for your users) that indicates
that the user is over quota, and you can then check this in post-login script by
exporting it into user's environment in userdb.

Aki