Magento Open Source 2.1.x

Magento 2.1.x Notice: Magento 2.1.18 is the final 2.1.x release. After June 2019, Magento 2.1.x will no longer receive security patches, quality fixes, or documentation updates. To maintain your site's performance, security, and PCIPayment Card Industry: Refers to debit and credit cards and their associated businesses. compliance, upgrade to the latest version of Magento. The Magento User Guide 2.1.x remains available in PDF for Open Source and Commerce.

Sending Newsletters

To manage the load on the server, newsletters with many subscribers are sent in a queue of multiple batches. You can check the newsletter queue periodically to check the status, and see how many have been processed. Any problems that occur during transmission appear on the Newsletter Problem Report.