[Exim] received_header_text wildcards?

Hello,

I'm interested in stripping away all "Received: ..." header information from
messages which are sent from internal sources to external destinations. In
effect, "hiding" the internal SMTP server information from outside
recipients. For example, an internal mail client sends a message to an
outside party. The message goes through a hop or two on internal mail
servers, then to the Exim relay server, then on to its destination. I'd like
the recipient only to see the Exim relay info, and not see the other hops
that took place internally.

I'd like Is it possible to use some sort of wildcard statement to eliminate
all received_header_text prior to the last outbound hop?

Something to the effect of:

dnslookup:
driver = dnslookup
domains = ! +local_domains
transport = remote_smtp
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
headers_remove = Received:*
no_more

Obviously the "Received:*" isn't the proper syntax!

Any pointers are greatly appreciated.

David


****************************************************************************
IMPORTANT NOTICES:
****************************************************************************
This message is intended only for the addressee. Please notify the sender
by email if you are not the intended recipient. If you are not the
intended recipient, you may not copy, disclose, or distribute this
message or its content to any other person and any such actions may be
unlawful. Electronic mail sent through the Internet is not secure.
WR Hambrecht + Co (WRH+Co) does not accept time sensitive, action-oriented
messages or transaction orders, including orders to purchase or sell
securities, via email.

WRH+Co reserves the right to monitor and review the content of all messages
sent to or from this email address. Messages sent to or from this email
address may be stored on the WRH+Co email system.
****************************************************************************