I'm unclear if this is RFC compliant or not, the specs DO say in Section
3.8.2 "environments may not conform eactly to this specification" - see
other RFC references..

The following line causes UNPARSEABLE_RELAY:

Received: from host1.internal (host1.internal) by host2.internal
(63.218.155.52) with ESMTP id m27NKoCv031779 for <[EMAIL PROTECTED]>;
Fri, 7 Mar 2008 17:20:50 -0600

Simply changing the host IP to host1.internal in ( ) as below causes it
to parse:

 Received: from host1.internal (63.218.155.52) by host2.internal
(63.218.155.52) with ESMTP id m27NKoCv031779 for <[EMAIL PROTECTED]>;
Fri, 7 Mar 2008 17:20:50 -0600

We have a site that we whitelist via whitelist_from_rcvd so when we get
UNPARSEABLE_RELAY it ignores the whitelist. This SEEMS like a bug in
spamassassin.

RFC specs I read include:

    Section 4.1.3 Address Literals is the format, basically just IP
address.
    Section 3.8.2:""Received:" fields of messages originating from other
environments may not conform exactly to this specification..."
    Section 4.4 Page 51: 
        Extended-Domain = Domain /
               ( Domain FWS "(" TCP-info ")" ) /
               ( Address-literal FWS "(" TCP-info ")" )

        TCP-info = Address-literal / ( Domain FWS Address-literal )
          ; Information derived by server from TCP connection
          ; not client EHLO.


Steve Radich - http://www.aspdeveloper.net /
http://www.virtualserverfaq.com 
BitShop, Inc. - Development, Training, Hosting, Troubleshooting -
http://www.bitshop.com

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