On Thu, 29 Aug 2013, Matt Devaney wrote:

Apologies for giving this a gentle nudge, but still confused as to where the
headers are going / what's causing them to be removed and hoping someone may
have some insight.

Thanks,
Matt


I don't know why the mailserver at wyvern.net is stripping stuff, but the 
reason the two at the top of the list are localhost and the name of the local 
box is that you have your mailserver set up that way.  Mine is the same way.  
I'm a sendmail guy, not a postfix guy, but notice what happens when I walk 
through the handshake when sending mail.  In this case I'm logged on to my 
mailserver (hope.billoblog.com) and am sending mail.  What does my mailserver 
do?  It talks to itself -- as localhost!

See below:

/usr/lib/sendmail -v [email protected] < /dev/null
[email protected]... Connecting to [127.0.0.1] via relay...
220 hope.billoblog.com ESMTP Sendmail 8.14.4/8.14.4; Thu, 29 Aug 2013
16:31:50 -0500
EHLO hope.billoblog.com
250-hope.billoblog.com Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
250-STARTTLS
250-DELIVERBY
250 HELP
STARTTLS
220 2.0.0 Ready to start TLS
EHLO hope.billoblog.com
250-hope.billoblog.com Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
250-DELIVERBY
250 HELP
MAIL From:<[email protected]> [email protected]
250 2.1.0 <[email protected]>... Sender ok
RCPT To:<[email protected]>
DATA
250 2.1.5 <[email protected]>... Recipient ok
354 Enter mail, end with "." on a line by itself
.
250 2.0.0 r7TLVont002782 Message accepted for delivery
[email protected]... Sent (r7TLVont002782 Message accepted for
delivery)
Closing connection to [127.0.0.1]
QUIT
221 2.0.0 hope.billoblog.com closing connection


For me as a sendmail user, the reason it does this (as far as I can tell) is 
that localhost appears before hope.billoblog.com in the file /etc/access.  My 
/etc/access file looks like:

Connect:localhost.localdomain RELAY Connect:localhost RELAY Connect:127.0.0.1 RELAY Connect:billoblog.com RELAY

If I change that to:

Connect:localhost.localdomain           DISCARD
Connect:localhost                       DISCARD
Connect:127.0.0.1                       DISCARD
Connect:billoblog.com                   RELAY


Then my handshake looks like this.  Note that localhost has dropped from
the picture.

/usr/lib/sendmail -v [email protected] < /dev/null
[email protected]... Connecting to [127.0.0.1] via relay...
220 hope.billoblog.com ESMTP Sendmail 8.14.4/8.14.4; Thu, 29 Aug 2013
16:49:06 -0500
EHLO hope.billoblog.com
250-hope.billoblog.com Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
250-STARTTLS
250-DELIVERBY
250 HELP
STARTTLS
220 2.0.0 Ready to start TLS
EHLO hope.billoblog.com
250-hope.billoblog.com Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
250-DELIVERBY
250 HELP
MAIL From:<[email protected]> [email protected]
250 2.1.0 <[email protected]>... Sender ok
RCPT To:<[email protected]>
DATA
250 2.1.5 <[email protected]>... Recipient ok
354 Enter mail, end with "." on a line by itself
.
250 2.0.0 r7TLn6q4002959 Message accepted for delivery
[email protected]... Sent (r7TLn6q4002959 Message accepted for
delivery)
Closing connection to [127.0.0.1]
QUIT
221 2.0.0 hope.billoblog.com closing connection





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