[ci skip] Fix #4739
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 5049578..3152003 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -1468,7 +1468,8 @@
.'Content-Type: '.$this->_attachments[$i]['type'].'; name="'.$name.'"'.$this->newline
.'Content-Disposition: '.$this->_attachments[$i]['disposition'].';'.$this->newline
.'Content-Transfer-Encoding: base64'.$this->newline
- .(empty($this->_attachments[$i]['cid']) ? '' : 'Content-ID: <'.$this->_attachments[$i]['cid'].'>'.$this->newline.$this->newline)
+ .(empty($this->_attachments[$i]['cid']) ? '' : 'Content-ID: <'.$this->_attachments[$i]['cid'].'>'.$this->newline)
+ .$this->newline
.$this->_attachments[$i]['content'].$this->newline;
}