Good copyright/disclaimer statement for logo/design proofs?


I’m looking to add a better copyright/disclaimer to my work that I sent to clients during the design process.

I’ve been using the following statement:
The material contained herein is for review purposes only. [My Company] retains all title, ownership, and intellectual property rights to the material contained herein.

I’m just not crazy about the wording, anyone have any better examples? Thanks!

It’s a good idea to send a low resolution sample that is lightly watermarked along with a disclaimer in your signature… here are some examples that might help you find the words that suit what you’re doing.

This e-mail is the property of [my company] It is intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential, or otherwise protected from disclosure. Distribution or copying of this e-mail, or the information contained herein, to anyone other than the intended recipient is prohibited.
DISCLAIMER Important! This message is intended for the above named person(s) only and is CONFIDENTIAL AND PROPRIETARY. If you are not the intended recipient of this e-mail and have received it in error, please immediately notify the sender by return email and then delete it from your mailbox. This message may be protected by the attorney-client privilege and/or work product doctrine. Accessing, copying, disseminating or re-using any of the information contained in this e-mail by anyone other than the intended recipient is strictly prohibited. Finally, you should check this email and any attachments for the presence of viruses, as the sender accepts no liability for any damage caused by any virus transmitted by this email. Thank you.
This communication is for use by the intended recipient and contains information that may be Privileged, confidential or copyrighted under applicable law. If you are not the intended recipient, you are hereby formally notified that any use, copying or distribution of this e-mail, in whole or in part, is strictly prohibited
The information in this email is confidential, and intended solely for the Addressee. If you have erroneously received this message, please delete it immediately and notify the sender. Any copying or further distribution beyond the original addressee is not intended, and may be unlawful.

Here are a few more