The most effective way to send newsletters

Question

Today, when I send basic emails, I use the Mail class, which is a custom wrapper using SwiftMailer, for example:

<?php
Mail::create('Message title')
        ->template('Template string or view path. Global variable "var" is "{var}". Current user is {username}.')
        ->tags(array('var' => 'value 1'))
        ->from('[e-mail]')
        ->to('[e-mail]', array('username' => 'Boris'))
        ->transport(Mail::SMTP)
        ->send();

It works great for basic emails, but cannot be used to send newsletters for several reasons:

• Pool Management
• Delayed Shipment
• Lack of tracking

So, I was thinking of a way to centralize more complex email management. I made a diagram:

I don’t want the remote server to save any contact information , only campaigns, recipients and statistics, for example, the following diagram:

< " ) , ​​, API , :

<?php
$result = NewsletterAPI::getRecipientsViewReport($campaignRef);
//
// Will contain something like : 
// Array
// (
//   [recipients] => Array
//     (
//       [0] => Array
//         (
//           [email] => [e-mail]
//           [opened] => 3
//           [last_open_date] => '2015-02-02 12:32:23', 
//           [data] => Array
//             (
//               [id] => 123
//             )
//         )
//       [1] => Array
//         (
//           [email] => [e-mail]
//           [opened] => 0
//           [last_open_date] => null, 
//           [data] => Array
//            (
//              [id] => 17
//            )
//        )
//    )
// )

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Answer 1

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api, php.