-We maintain a system with more than 150000 subscribers which gets
-and sends a lot more than 1000000 Mails a day, without that
-information we have no chance to find out what went wrong.
+We maintain a system with more than 150,000 subscribers which receives
+and sends more than 1,000,000 mails a day. Without the information
+above we have little chance of finding out what went wrong.