Hi
The simpler solution for me:
sender_dependent_default_transport_maps =
mysql:/etc/postfix/mysql_sender_default_rotate_map.cf
cat mysql_sender_default_rotate_map.cf
query = select transport from virtual_transport where active='1' order
by rand() limit 1;
+----+-----------------------+--------+
| id | transport | active |
+----+-----------------------+--------+
| 1 | smtp1 | 1 |
| 2 | smtp235 | 1 |
| 3 | smtp12 | 1 |
| 4 | smtp185 | 1 |
| 5 | smtp29 | 1 |
| 6 | smtp149 | 1 |
| 7 | smtp30 | 1 |
+----+-----------------------+--------+
and you must set transportname in master.cf and rate (if you need) on
main.cf
On 27.01.2021 18:39, Wietse Venema wrote:
> combro2k combro2k:
>> Hi there,
>>
>> I've been looking for some days for a solution I need to create for a
>> customer.
>> What we want to achieve is throttling the delivery of mails in the queue.
>> Right now we are using 'default_destination_rate_delay = 1s' which allows
>> us to send approx. 3600 to each destination maximum in 1 hour timeframe.
>> But we want to be more specific like 5000 mails globally,or 16000 globally,
>> whatever we want to do.
>> I've looked into PolicyD to achieve this, but I am stuck at the
>> implementation of it at the queue system of Postfix;
>> Right now I can only see it work with the smtpd_recipient_restrictions and
>> smtpd_end_of_data_restrictions configuration option but not with the queue
>> service.
>> Am I missing something or I am overthinking it?
> You can implement sub-second rate delays with parallel deliveries.
> Below is an example from an last-year's email.
>
> Wietse
>
> In /etc/postfix/master.cf:
>
> smtp1 unix - - n - - smtp
> smtp2 unix - - n - - smtp
> ...
> smtpN unix - - n - - smtp
>
> In /etc/postfix/main.cf:
>
> smtp1_destination_rate_delay = 1
> smtp2_destination_rate_delay = 1
> ...
> smtpN_destination_rate_delay = 1
>
> transport_maps =
> inline:{
> { $myhostname = $local_transport }
> { localhost = $local_transport }
> { localhost.$mydomain = $local_transport }
> # Other domains that don't deliver over SMTP...
> }
> randmap:{ smtp1:, smtp2:, ..., smtpN: }
>
> This syntax requires Postfix 3.0 or later.
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