I want to change the contact setting flood limit, but I don't find the correct place. How I change the flood limit for sent messages?
There isn't an interface to change this, but you can do it by importing a config file. You need to get a hold of
contact.settings.yml file. Default looks something like this:
default_form: feedback flood: limit: 5 interval: 3600 user_default_enabled: true
You can see the flood limit and interval which you can change and then import the file using the config management system.
You can do this with drush:
drush cedit contact.settings