Rule for e-mails "addrs1 on behalf of addr2" based on addrs1

[CanCust]

For e-mails received with "From: [address1] on behalf of [address2]", how can I set up a rule to move them to a particular folder based on [address1], not on [address2]?

All tech-support sites I've visited have solutions for moving the messages based on [address2]. I have the opposite need.

The senders work for an engineering company where all personnel working on my project, from the most senior to the most junior people are delegated by the project manager to send e-mail on his/her behalf.

For instance, I may daily receive dozens of messages from three individuals to my Inbox with the "From" field showing these when I open each message (addresses are made-up, not real):

From: john.smithATabc.com on behalf of project123-pmATabc.com
From: janine.doeATabc.com on behalf of project123-pmATabc.com
From: jason.harttATabc.com on behalf of project123-pmATabc.com

In this made-up example, the first one is from the actual project manager, the second one is from the engineering manager, and the third is from a project engineer.

However, before I open each message, all of them show the same address under the "From" column of my Inbox screen:

project123-pmATabc.com



On this screen, I cannot tell which ones are from the PM --which I should open first as they are probably most important to me-- and so on.

I've tried several rules using 'with "project123-pmATabc.com" in message header' but none has worked as expected.

Could you please let me know how should I structure my rule?

Thanks.