quota-status service

[Vijay Rajah]

Michael,


See my responses inline


On 07/02/2016 06:25 AM, Michael Fox wrote:
> ???
>
>   
>
> From: Michael Fox [mailto:news at mefox.org]
> Sent: Thursday, June 30, 2016 1:59 PM
> To: Dovecot Mailing List (dovecot at dovecot.org) <dovecot at dovecot.org>
> Subject: quota-status service
>
>   
>
> I'm trying to understand the quota-status service, but I can't find complete
> documentation.
>
>   
>
> The quota-status service is mentioned here:  http://wiki.dovecot.org/Quota
>
>   
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> And an example configuration is shown:
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> service quota-status {
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>      executable = quota-status -p postfix
>
>      inet_listener {
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>          port = 12340
>
>          # You can choose any port you want
>
>      }
>
>      client_limit = 1
>
> }
>
>   
This is how I have configured it.
>
> But I can't find any information on quota-status.
>
> "man quota-status" returns nothing.
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> I am unable to find a "quota-status" file on my machine.  Where is the
> executable located?
>
> What does the "-p postfix" option do?
>
> Are there any other command line options?
>
> The above wiki page shows three quota_status_* options in use:
>
>      quota_status_success = DUNNO
>      quota_status_nouser = DUNNO
>      quota_status_overquota = "552 5.2.2 Mailbox is full"

The way I understand it is, this Quota service was built specifically 
for postfix. (I only have postfix, have not used any other MTA)
The "quota-status" executable is in you libexec directory. ( I compiled 
my dovecot instance, hence is is not in "regular" directory)
The "quota_status_*" are responses to postifx. AFAIK, these are the only 
3 possible options.

Please see ( 
https://sys4.de/en/blog/2013/04/08/postfix-dovecot-mailbox-quota/ ) for 
a detailed info on this

When Postfix MTA is "inline" with the sender, and if you have correctly 
configured the quota service, it will check if the recipient's mailbox 
can accept mails. If the recipient is able to accept mail dovecot 
responds with "DUNNO" (as configured in "quota_status_success" ) to let 
postifx continue with its sender checks. if the recipient's mail box is 
unable to accept mails, the dovecot responds with "552 5.2.2 Mailbox is 
full" (as configured in "quota_status_overquota"), this will prevent 
postfix from accepting mail and will respond with 552 status .  All this 
is documented in that blog.

Please also see: http://www.postfix.org/SMTPD_ACCESS_README.html


> Where are their meanings documented?
>
> What are the allowed values?
>
> Are there other quota_status_* options?
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>   
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> Thanks in advance.
>
>   
>
> Thanks,
>
> Michael
>
>   
Hope this was helpful

-Thanks
Vijay