do not filter bounce messages

[daro]

Hello,

is there some sort of condition to make an exception for bounce messages (NDR)?
Can I filter for (no sender)?

thanks
cheers

Daniel

[Libin Varghese · Accepted solution]

Hi Daniel,

You can try creating a filter condition such as below

mail-from == "^$"

This checks to see if the envelope sender (mail-from) is empty.

This is similar to empty from header described in the below article.

http://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/117814-configure-esa-00.html

Thank You!
Libin Varghese