Integration Ymlp email newsletter subscription
Ymlp is another newsletter service provider like mailchimp. This is a Drupal 8 module, it provides a drupal block to enable subscribe / unsubscribe with site, which at the end add the email to Ymlp account.
Install the module just like drupal standard module installation. Then place the block anywhere you want.
It provides a drupal service also, can be used separately.
You can contact me at: Shafiq Hossain, md.shafiq.hossain@gmail.com