2.4.5 suggested edits

[Added
some commas and made referential terms a bit more explicit.]

 

Because
ebMS intermediaries do not change the ebMS messages they route, the eb3:Messaging
header can be targeted to the nextMSH
when received by the ultimate endpoint. Therefore, the ultimate receiving
endpoint SHOULD also act in the nextMSH
role. If the ultimate receiving endpoint is unable to act in the nextMSH role, the sending endpoint SHOULD target
eb3:Messaging headers to the
default ultimateReceiver role.