Routing rules in SAP incoming email

Hello, SAP Gurus,

I have doubt, in the note 455140 step 5, show me routing roles to configure incoming mail, but I don´t understand this routing:

For example:

*@crm-prod.company.com --> SAPWASHost:25000 , What´s the meaning?

*@crm-prod.company.com , i think is: mymailuser after @ domainmycompany.com = Is ok?

Or is someone user after @ saphostname.domainmycompany.com, Which one is correct?

SAPWASHost: this name is not change?

Or SAPWASHost: is the name of my hostname?

Thanks for your answers about it.

Best regards.