How do I stop Read Receipts from being processed by Crossware Mail Signature?


1. From the Exchange admin center go to Mail Flow > Rules

2. Create a New Rule

3. Click on More options...

4. Rule Settings
Name: Read Receipt bypass Crossware

Apply this rule if...: The message type is...Read Receipt

(see screen captures below)

Do the following... > Set the message header to this value...

message header: x-cwesigprocessed
value: Y

(see screen captures below)

Match sender address in message > Select Envelope

(see screen captures below)

5. Click on Save

6. Update the Rule Priority

Please update the priority of the rule so it is high than the CrosswareMSTransportRule

See below:

PLEASE NOTE: It may take upto 45 minutes for the Transport Rule to take effect within Azure
Related Products: CMS M365