Title: Sending multiple emails Last modified: January 2, 2017 --- # Sending multiple emails * Resolved [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/) * Hi, * How can I send ten unique emails using wp_mail? I don’t want the other recipients to see each other. * I currently have an array of the user_emails. Should I loop through them and trigger wp_mail for each one or is there a better practice? * Currently I have * wp_mail( $user_email_addresses, $subject, $message, $headers ); * where user_email_addresses is an array of email addresses * I could bcc but I thought that would not be good practice. * Thanks! * Elliot Viewing 15 replies - 1 through 15 (of 19 total) 1 [2](https://wordpress.org/support/topic/sending-multiple-emails-2/page/2/?output_format=md) [→](https://wordpress.org/support/topic/sending-multiple-emails-2/page/2/?output_format=md) * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614132) * Hey [@raisonon](https://wordpress.org/support/users/raisonon/), the best way to do this would be to provide all of the addresses in the `To` field, but also provide recipient variables through the headers field. * So, I think the best way to do this would be to keep a count and assign each of the recipients an “id” that you don’t even necessarily have to use. * Example: * ``` $rcpt_vars = array(); $idx = 0; foreach ($user_email_addresses as $user_addr) { $rcpt_vars[$user_addr] = array("batch_msg_id" => $idx); $idx++; } $rcpt_vars_json = json_encode($rcpt_vars); wp_mail($user_email_addresses, $subject, $message, array( "X-Mailgun-Variables: ${rcpt_vars_json}" )); ``` * See also: [Sending Batch Messages](https://documentation.mailgun.com/user_manual.html#batch-sending) * Hope this helps! 🙂 * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614294) * Hi [@mailgun](https://wordpress.org/support/users/mailgun/) * Ok, I’ve implemented this and when I look at Mailgun logs I can see when I am running this with two email addresses: * ``` "recipient-domain": "raison.co", "method": "http", "campaigns": [], "user-variables": { "elliot@abc.co": { "batch_msg_id": 1 }, "ejntaylor@abc.com": { "batch_msg_id": 0 } }, "flags": { "is-routed": false, "is-authenticated": true, "is-system-test": false, "is-test-mode": false }, "log-level": "info", "id": "_czIE6OkRPeQ_xVhoYX9iQ", "message": { "headers": { "to": "ejntaylor@abc.com, elliot@abc.co", ``` * So I can see the user-variables are sent ok and received. But if you look at the message: header” to you will see it is still sending to both the addresses still. * Any ideas appreciated. I have posted full code below: * ``` // email vars $subject = $title; // set headers $site_email = $site['post_email']; $site_name = $site['post_title']; $site_url = $site['site_url']; // mailgun multiple emails // https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614132 $rcpt_vars = array(); $idx = 0; foreach ($user_email_addresses as $user_addr) { $rcpt_vars[$user_addr] = array("batch_msg_id" => $idx); $idx++; } $rcpt_vars_json = json_encode($rcpt_vars); // headers $headers = "X-Mailgun-Variables: ${rcpt_vars_json}" . "\r\n"; $headers .= "From: " . $site_name ." <".$site_email.">" . "\r\n"; $headers .= "MIME-Version: 1.0" . "\r\n"; $headers .= "Content-type: text/html; charset=".get_bloginfo('charset') . "\r\n"; var_dump($headers); // pass vars by using ob ob_start(); include(locate_template('/_includes_templates/email_templates/default.php')); $message = ob_get_clean(); // action wp_mail( $user_email_addresses, $subject, $message, $headers ); ``` * Var_dump of headers: * `string(198) "X-Mailgun-Variables: {"ejntaylor@abc.com":{"batch_msg_id":0},"elliot@ abc.co":{"batch_msg_id":1}} From: yogrow.co MIME-Version: 1.0 Content-type: text/ html; charset=UTF-8 "` - This reply was modified 9 years, 7 months ago by [Elliot Taylor](https://wordpress.org/support/users/raisonon/). Reason: email included by mistake * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614364) * Hi [@mailgun](https://wordpress.org/support/users/mailgun/) * There are some other people with a similar problem here: [Stackoverflow Link](https://stackoverflow.com/questions/37948729/mailgun-smtp-batch-sending-with-recipient-variables-shows-all-recipients-in-to-f?rq=1) * The instruction (from Mailgun) seems to be to add %recipient% in the to field. However when I do this I see no log of this in Mailgun. * Thanks for looking into this. * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614395) * [@raisonon](https://wordpress.org/support/users/raisonon/) Try adding `%recipient. batch_msg_id%` somewhere in your email template and try sending again. * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614458) * Added this in the footer: * `

Mailgun Param: %recipient.batch_msg_id%

` * No luck and the param not completed. * Screenshots: [https://www.dropbox.com/s/qmlpf893zfnk61g/Screenshot%202017-01-03%2018.23.01.png?dl=0](https://www.dropbox.com/s/qmlpf893zfnk61g/Screenshot%202017-01-03%2018.23.01.png?dl=0) * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614789) * Hey [@raisonon](https://wordpress.org/support/users/raisonon/), I’m going to look deeper in to this issue, I just need a little time. I think the best solution for you right now is to send 10 individual emails, or alternatively, use the BCC field. * I think that sending multiple messages would be the better solution for you, though. * I’ll let you know when I find something 🙂 * Thanks! * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8615094) * Thanks for helping 🙂 * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8615106) * [@raisonon](https://wordpress.org/support/users/raisonon/) of course! Let me know if there’s anything else we can do for you! 🙂 * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8618986) * Hey [@raisonon](https://wordpress.org/support/users/raisonon/)! It’s a long shot, but could you try [this beta-ish](https://github.com/mailgun/wordpress-plugin/archive/sjohn/batch.zip) version for the batch mailing? * Batch mailing with the beta is like this: * ``` add_filter('mg_use_recipient_vars_syntax', 'mg_true'); function mg_true() { return true; }); wp_mail($to, $subject, $message, null, null); remove_filter('mg_use_recipient_vars_syntax', 'mg_true'); ``` * I think this should work because it will set the `To` address *after* the initial call to the built-in `wp_mail` filters, which is likely what is causing batch messages with `%recipient%` as the `To` address to not get submitted. Please let me know if this ends up working 🙂 - This reply was modified 9 years, 7 months ago by [Mailgun](https://wordpress.org/support/users/mailgun/). * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8619137) * I’m getting the following error: * `Fatal error: Call to undefined function apply_filter() in /nas/content/live/ superscribe/wp-content/plugins/mailgun/includes/wp-mail.php on line 285` * Here is my code using the above – can you confirm I have this correct: * ``` // email vars $subject = $title; // set headers //var_dump($site); $site_email = $site['post_email']; $site_name = $site['post_title']; $site_url = $site['site_url']; // mailgun multiple emails // https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614132 $rcpt_vars = array(); $idx = 0; foreach ($user_email_addresses as $user_addr) { $rcpt_vars[$user_addr] = array("batch_msg_id" => $idx); /* $rcpt_vars[$user_addr] = array( "batch_msg_id" => $idx, "email" => $user_addr); */ $idx++; } $rcpt_vars_json = json_encode($rcpt_vars); // headers $headers = "X-Mailgun-Variables: ${rcpt_vars_json}" . "\r\n"; $headers .= "From: " . $site_name ." <".$site_email.">" . "\r\n"; $headers .= "MIME-Version: 1.0" . "\r\n"; $headers .= "Content-type: text/html; charset=".get_bloginfo('charset') . "\r\n"; var_dump($headers); // pass vars by using ob ob_start(); include(locate_template('/_includes_templates/email_templates/default.php')); $message = ob_get_clean(); // new batch filter add_filter('mg_use_recipient_vars_syntax', 'mg_true'); function mg_true() { return true; } // action wp_mail( $user_email_addresses, $subject, $message, $headers ); // new batch remove filter remove_filter('mg_use_recipient_vars_syntax', 'mg_true'); ``` * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8619169) * Looks correct, but you should be able to go without this code: * ``` // mailgun multiple emails // https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8614132 $rcpt_vars = array(); $idx = 0; foreach ($user_email_addresses as $user_addr) { $rcpt_vars[$user_addr] = array("batch_msg_id" => $idx); /* $rcpt_vars[$user_addr] = array( "batch_msg_id" => $idx, "email" => $user_addr); */ $idx++; } $rcpt_vars_json = json_encode($rcpt_vars); // headers $headers = "X-Mailgun-Variables: ${rcpt_vars_json}" . "\r\n"; ``` * Also, the error is because I made a small typo.. Could you try again with the same link? * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8621290) * Hi [@mailgun](https://wordpress.org/support/users/mailgun/) * I’ve been experimenting for the last hour without luck :/ * It sends when I remove the add_filter but when that is added I don’t see an email being received by the mailgun log. But it is still sending to everyone on the email to field as one email… * Interestingly, I am seeing the email (with filters added) appearing in my wp_mail log plugin that I use in the backend of WP. * [https://www.dropbox.com/s/v4olk8vtnkm0ijm/Screenshot%202017-01-05%2010.26.24.png?dl=0](https://www.dropbox.com/s/v4olk8vtnkm0ijm/Screenshot%202017-01-05%2010.26.24.png?dl=0) * I’m not sure if that helps narrow down the problem. * Any help appreciated. Feel like we are nearly there! - This reply was modified 9 years, 7 months ago by [Elliot Taylor](https://wordpress.org/support/users/raisonon/). * Plugin Author [Mailgun](https://wordpress.org/support/users/mailgun/) * (@mailgun) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8622983) * [@raisonon](https://wordpress.org/support/users/raisonon/) Are you using a plugin to try to send batch mails? * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8623033) * I’m coding this myself – ta * Thread Starter [Elliot Taylor](https://wordpress.org/support/users/raisonon/) * (@raisonon) * [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/#post-8623174) * Would it help to see more of my code and/or get site access? Viewing 15 replies - 1 through 15 (of 19 total) 1 [2](https://wordpress.org/support/topic/sending-multiple-emails-2/page/2/?output_format=md) [→](https://wordpress.org/support/topic/sending-multiple-emails-2/page/2/?output_format=md) The topic ‘Sending multiple emails’ is closed to new replies. * ![](https://ps.w.org/mailgun/assets/icon-256x256.png?rev=2434524) * [Mailgun for WordPress](https://wordpress.org/plugins/mailgun/) * [Frequently Asked Questions](https://wordpress.org/plugins/mailgun/#faq) * [Support Threads](https://wordpress.org/support/plugin/mailgun/) * [Active Topics](https://wordpress.org/support/plugin/mailgun/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/mailgun/unresolved/) * [Reviews](https://wordpress.org/support/plugin/mailgun/reviews/) * 19 replies * 2 participants * Last reply from: [Mailgun](https://wordpress.org/support/users/mailgun/) * Last activity: [9 years, 7 months ago](https://wordpress.org/support/topic/sending-multiple-emails-2/page/2/#post-8623989) * Status: resolved