diff --git a/email/Mailer.php b/email/Mailer.php
index 6d66112f6..ba5dda1d4 100644
--- a/email/Mailer.php
+++ b/email/Mailer.php
@@ -224,7 +224,7 @@ class Mailer extends Object {
 		$to = $this->validEmailAddr($to);
 		
 		// Try it without the -f option if it fails
-		if(!($result = @mail($to, $subject, $fullBody, $headers, escapeshellarg("-f$bounceAddress")))) {
+		if(!$bounceAddress || !($result = @mail($to, $subject, $fullBody, $headers, escapeshellarg("-f$bounceAddress")))) {
 			$result = mail($to, $subject, $fullBody, $headers);
 		}