This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

       *** Email address is removed for privacy ***

Reporting-MTA: dns;BAY0-PAMC2-F8.Bay0.hotmail.com

Received-From-MTA: dns;mail-pa0-f41.google.com

Arrival-Date: Tue, 24 Sep 2013 23:08:01 -0700

Final-Recipient: rfc822;*** Email address is removed for privacy ***

Action: failed

Status: 5.2.2

Diagnostic-Code: smtp;552 5.2.2 This message is larger than the current system limit or the recipient's mailbox is full. Create a shorter message body or remove attachments and try sending it again.

But as Outlook.com is providing Unlimited space on each email id, then how come the Mailbox is full.  I am just sending a simple email without attachments, so there should not be any issue of attachments as well.

Kindly resolve this issue as my clients are not able to correspond with me.

Awaiting your quick reply.