diff --git a/libraries/src/Mail/MailTemplate.php b/libraries/src/Mail/MailTemplate.php
index 5600b863ba39e..4ddb22b3774d2 100644
--- a/libraries/src/Mail/MailTemplate.php
+++ b/libraries/src/Mail/MailTemplate.php
@@ -249,7 +249,9 @@ public function send()
                 $htmlBody = nl2br($plainBody, false);
             }
 
-            $htmlBody = MailHelper::convertRelativeToAbsoluteUrls($htmlBody);
+            if (!$app->isClient('cli')) {
+                $htmlBody = MailHelper::convertRelativeToAbsoluteUrls($htmlBody);
+            }
 
             $this->mailer->setBody($htmlBody);
         }