we have 2 domains and 2 PO
Each domain has its own internet domain abc.com and def.com

The domains are part of the same GW system and every user is visible.

I would like to set up a rule so that mail coming from any user in post
office A at abc.com will get filed in a folder.

In the properties of internal mail there is a 'created by" field which
shows the full user name and domain "user@abc.com"

Is there any was to get access to this field so that I can use a rule ?