dovecot - Mar 2019 - Dovecot quota and Postfix smtpd_recipient_restrictions?

> From: Urban Loesch
> 
> Hi,
> 
>> I would like to enable (the same) quota (count) for all 
>> (virtual)users,
>> on Debian Stretch, Postfix 3.1.8, Dovecot 2.2.27,
>> and is not clear for me if I need to tell Postfix to communicate with 
>> the service in /etc/postfix/main.cf as here:
>> 
>> 
>> smtpd_recipient_restrictions >>      ...
>>      check_policy_service inet:mailstore.example.com:12340
> I configured it like your example above and it works for me.
> 
> Best
> Urban
Well,

so the right syntax (in my case) would be:

-o smtpd_recipient_restrictions = 
reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject,check_policy_service
inet:mailstore.example.com:12340

right?  :-)


And eventually, should you suggest me how made some functional 
verification test?


Many many many thanks Urban!! ;-)


Davide

Hi,

> Well,
> 
> so the right syntax (in my case) would be:
> 
> -o smtpd_recipient_restrictions =
reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject,check_policy_service
> inet:mailstore.example.com:12340
> 
> right?? :-)
I configured it before the "permit_sasl_authenticated" and the
"reject" statement.
> 
> 
> And eventually, should you suggest me how made some functional verification
test?
According to: http://www.postfix.org/SMTPD_POLICY_README.html try on your
postfix:

telnet mailstore.example.com 12340

and insert the following lines:

sender=somesender at somedomain.com
recipient=your at recipient.com
size=12345
[empty line]


Set a size= in bytes which is greater that your configured quota.
In theory the policy service should respond with your configured error message
"552 5.2.2 Mailbox is full".

Example on my server:

...
sender=postmaster at somedomain.com
recipient=my at recipient.com
size=123450000000

action=552 5.2.2 Mailbox is full
...


For a livetest reduce the quota of your testaccount to ex. 100KB and the send a
mail > 100BK from outside to it. You should see the "552" error
message in your logs and you should get back a bouncemail from the sending
server.

Hope I explained it correct.

Best
Urban