thanks for indication

but it is interesting Odoo limit per hour or minute

similar interspire

This should not be the task of Odoo.

software as "Mautic" and "interspire email marketer" have control of email per minute

another important point

for example if you have a list of more than 300 contacts

and send them in a few seconds there will be a problem with your IP and few emails arrive at the destination

I'm using Odoo with Amazon SES since almost 4 years and I do not have any problems. I do not have problems with my IP and all emails get delivered.

But Odoo is open source and if throttling of emails is so important to you, you are free to develop a module with the corresponding functionality.