diff --git a/src/Plugin/Mail/SendGridMail.php b/src/Plugin/Mail/SendGridMail.php
index 9b6caa8ca4c9e37acce4f2e7ba3079bbd6b9b088..90f590bebc2937114efe3e02b8dc3b2d1059ba0c 100644
--- a/src/Plugin/Mail/SendGridMail.php
+++ b/src/Plugin/Mail/SendGridMail.php
@@ -457,6 +457,7 @@ class SendGridMail implements MailInterface, ContainerFactoryPluginInterface {
       if (in_array(mb_strtolower($key), $cc_bcc_keys)) {
         $mail_ids = explode(',', $value);
         foreach ($mail_ids as $mail_id) {
+          $mail_id = trim($mail_id);
           $email_components = $this->parseAddress($mail_id);
           $mail_cc_address = $email_components[0];
           // If there was a name with the mail,