diff --git a/api/src/Mail/Avatar.php b/api/src/Mail/Avatar.php
index f319084d7d..835cd54c5b 100644
--- a/api/src/Mail/Avatar.php
+++ b/api/src/Mail/Avatar.php
@@ -69,7 +69,7 @@ class Avatar
 		{
 			return [];
 		}
-		if (preg_match("/^\"?'?(.*)'?\"?\s+<([^<>'\"]+)>$/", $address, $matches))
+		if (preg_match("/^\"?'?(.*?)'?\"?\s+<([^<>'\"]+)>$/", $address, $matches))
 		{
 			if (($parts = preg_split('/[, ]+/', $matches[1])))
 			{