diff --git a/app/classes/Framadate/Services/MailService.php b/app/classes/Framadate/Services/MailService.php
index ce8aa0b..5fcccfa 100644
--- a/app/classes/Framadate/Services/MailService.php
+++ b/app/classes/Framadate/Services/MailService.php
@@ -68,10 +68,12 @@ class MailService {
             // Bodies
             $body = $body . ' <br/><br/>' . __('Mail', 'Thank you for your trust.') . ' <br/>' . NOMAPPLICATION . ' <hr/>' . __('Mail', "\"The road is long, but the way is clear…\"<br/>Framasoft lives only by your donations.<br/>Thank you in advance for your support https://soutenir.framasoft.org");
             $mail->isHTML(true);
-            $mail->msgHTML($body, ROOT_DIR, true);
+            $mail->CharSet = PHPMailer::CHARSET_UTF8;
+            $mail->msgHTML($body, ROOT_DIR, function ($html) use ($mail) {
+                return $this->html2text($mail, $html);
+            });
 
             // Build headers
-            $mail->CharSet = 'UTF-8';
             $mail->addCustomHeader('Auto-Submitted', 'auto-generated');
             $mail->addCustomHeader('Return-Path', '<>');
 
@@ -124,4 +126,16 @@ class MailService {
             }
         }
     }
+
+    /**
+     * Custom "advanced" callback to pass to msgHTML function
+     *
+     * @param PHPMailer $mailer  a PHPMailer instance
+     * @param string    $html    the HTML body of an email
+     */
+    private function html2text(PHPMailer $mailer, $html) {
+        $html = preg_replace('/<a[^>]*href="([^"]+)"[^>]*>(.*?)<\/a>/si', '${2}: ${1}', $html);
+
+        return $mailer->html2text($html);
+    }
 }
diff --git a/composer.lock b/composer.lock
index 853d393..f11945d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -806,16 +806,16 @@
         },
         {
             "name": "phpmailer/phpmailer",
-            "version": "v6.0.5",
+            "version": "v6.0.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPMailer/PHPMailer.git",
-                "reference": "cb3ea134d4d3729e7857737d5f320cce9caf4d32"
+                "reference": "0c41a36d4508d470e376498c1c0c527aa36a2d59"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/cb3ea134d4d3729e7857737d5f320cce9caf4d32",
-                "reference": "cb3ea134d4d3729e7857737d5f320cce9caf4d32",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/0c41a36d4508d470e376498c1c0c527aa36a2d59",
+                "reference": "0c41a36d4508d470e376498c1c0c527aa36a2d59",
                 "shasum": ""
             },
             "require": {
@@ -868,7 +868,7 @@
                 }
             ],
             "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
-            "time": "2018-03-27T13:49:45+00:00"
+            "time": "2019-02-01T15:04:28+00:00"
         },
         {
             "name": "psr/log",
@@ -2580,6 +2580,7 @@
                 "mock",
                 "xunit"
             ],
+            "abandoned": true,
             "time": "2017-06-30T09:13:00+00:00"
         },
         {