Dovecot Submission - rate limiting

[itanguy at univ-brest.fr]

Le 31/03/2022 à 16:08, Aki Tuomi a écrit :
>> On 31/03/2022 17:00itanguy at univ-brest.fr  wrote:
>>
>>   
>> Hello,
>>
>> is there any way to rate limit submission mail (counting per user) when
>> using Dovecot/Submission (no Postfix)?
>>
>> Using a milter seems impossible.
>> Using Dovecot Events seems "too" global (not per users discrimination).
>> Maybe rate-limiting has to be external and then include in the pass_db
>> query ?
>>
>>
>> Thank your for any hints.
> Hi!
>
> Dovecot submission is not an MTA, it *always* requires something behind. You cannot use milters with it. If your MTA supports XFORWARD/XCLIENT you can use submission_relay_trusted to allow this information to be forwarded to the MTA.
>
> Aki

Thanks for your answer.
We find better to count at the Submission Step.

I try to use metric, but don't find yet the good parameters to see 
submission events :

metric submission_counter {
     filter = event=smtp_submit_finished
     fields = mail_from recipients data_size
}

Submit some mails and then doveadm stats dump.

result stay null :

doveadm stats dump
metric_name     field  count           sum     min     max avg    median 
stddev %95
submission_counter   duration      0         0          0 0        
0.00       0           0.000
submission_counter   mail_from  0         0          0 0        
0.00        0           0.000
submission_counter   recipients   0         0         0 0        
0.00        0           0.000
submission_counter   data_size    0        0         0 0         
0.00        0           0.000

>> Ismaël Tanguy
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