Mailgun track unique opens

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清酒与你

Just tested mailgun through its API.

Everything is working fine.

Short: How to track unique opens for a specific mail through webhooks.

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2条回答

耶瑟儿～

2021-01-13 15:31

Ok I think I got an acceptable workflow - through the “custom variables”.

You can define different values for each recipient, so you can send a unique id and then track that id on the open events. And just save one open for each sender or update the open time.

My sending code (PHP):

$result = $mg->sendMessage($domain, array(
            'from'    => 'foo@bar.de>',
            'to'      => 'recipient1@mail.de, recipient2@mail.de',
            'subject' => 'Hello %recipient.first% from %recipient.group%!',
            'text'    => 'Test of Mailgun',
            'html'    => '<html>It is so simple to send a message.<br/>Right?</html>',
            'o:tag'   => array('test'),
            'o:tracking-opens' => 'yes',
            'v:my-custom-data' => '{"my_message_id": %recipient.id%}',
            'recipient-variables' => '{
                "recipient1@mail.de": {"first":"Recipient1", "group":"group1", "id":1},
                "recipient2@mail.de": {"first":"Recipient2", "group":"group2", "id":2}
            }'
));

Then in each event you get a response with the unique ids.

Open event of first email:

"user-variables": {
    "my-custom-data": "{\"my_message_id\": 1}"
},

Open event of second email:

"user-variables": {
    "my-custom-data": "{\"my_message_id\": 2}"
},

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悲&欢浪女

2021-01-13 15:45

Best way to track email openings is so called "pixel". First you need to inject pixel in your email.

For example:

    public function insertPixel($user,$template)
        {
            $output = $template.'<img src="'.Yii::app()->homeUrl.'/mailing/pixel/track?id='.$this->campaign->id.'&user='.$user.'&rand='.rand().'">';

            return $output;
        }

Which points to php endpoint. At that endpoint you will get openings and do w/e you want with them.

For example:

public function actionTrack()
{
    if (isset($_GET["id"])&&isset($_GET["user"])){
            Yii::app()->db->createCommand("UPDATE mailing_campaigns SET open_count = open_count + 1 WHERE id=:id")
                ->bindParam(":id",$_GET["id"],PDO::PARAM_INT)
                ->execute();
    }
    header('Content-Type: image/gif');
    echo "\x47\x49\x46\x38\x37\x61\x1\x0\x1\x0\x80\x0\x0\xfc\x6a\x6c\x0\x0\x0\x2c\x0\x0\x0\x0\x1\x0\x1\x0\x0\x2\x2\x44\x1\x0\x3b";
    exit;
}

This code adjusts open's counter for mailing campaign for example and returns 1x1 transparent .gif image.

It's not 100% precise because some people not loading images in emails, but its best way I know so far.

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