Wietse Venema wrote:
Vance Wheelock:
The output message looks like:
======================================================================
From: xxx AT xxx DOT com
To: xxxx AT xxxxx DOT net
Subject: Teleblend test
References: <00e501c7d9e4$03a64e30$0200810a AT xxxx DOT net>
In-Reply-To: <00e501c7d9e4$03a64e30$0200810a AT xxxxx DOT net>
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="------------060108060008080501030900"
Message-Id: <20070808174614.4B8B757E78 AT xxxxx DOT com>
Date: Wed, 8 Aug 2007 13:46:14 -0400 (EDT)
This is a multi-part message in MIME format.
--------------060108060008080501030900
That should render OK with MIME-aware software.
I agree with you 100%, unfortunately crappy Microsoft Outlook will not
render that properly and unfortunately, a high percentage of users use
Outlook. I use Thunderbird and it renders just fine, it is just that
most of the people will be using this vacation script also use Outlook.
The Message-Id: and Date: lines are appended by postfix's sendmail (as
far as I can tell). The two lines get appended at the very first empty
line. In this case since I do not have an extra cr/lf under the
"Mime-Version 1.0" line and my body is directly below the "Mime-Version
1.0" line, the two lines get pasted into the "body" of my message where
it finds it's first empty lines. The $body string starts with the lines
Content-Type: multipart/alternative;
boundary="------------060108060008080501030900"
and then after this is a new line, and that is where the two lines are
being appeneded plus two cr/lf lines.
So I thought I could append an extra newline after the "Mime-Version
1.0" line and it would work.
That definitely screws up the mail. The Content-Type: is no longer
part of the message headers, and thus your MIME boundaries no longer
work.
If you want to write MIME formatted mail, you need to study the
MIME RFC documents.
Wietse
This is has something to do with the postfix's sendmail
executable and how it appends headers which are missing. In this case
the Message-Id: and Date: lines.
Given the following perl code: (this is from postfixadmin's
vacation.pl) I have edited it slightly from my last message (removing
the is_html code because it wasn't necessary)
==========================
sub do_mail {
my ($from, $to, $subject, $body, $orig_msgID) = @_;
# clean up the email address since we pass it to the commandline
#To use HTML the message mus contain the whole MIME encapsulated part
my $fromemail = $from;
if ($fromemail =~ /([\w\-.%]+\@[\w.-]+)/) { $fromemail = $1; }
open (MAIL, "| $sendmail -t -f \"$fromemail\"") or die ("Unable to
open sendmail");
print MAIL "From: $from\n";
print MAIL "To: $to\n";
print MAIL "Subject: $subject\n";
if ( $orig_msgID ) {
print MAIL "References: $orig_msgID\n";
print MAIL "In-Reply-To: $orig_msgID\n";
}
print MAIL "X-Loop: Postfix Admin Virtual Vacation\n";
print MAIL "$body";
close (MAIL) or die ("Unable to close sendmail");
}
=============================================
Outlook will not render the output corectly. However if I switch the
executable to work with sendmail's sendmail
executable. The sendmail executable work's as expected and the
Message-Id and Date lines appear near the top of the header and are not
appeneded at the end.
As in the previous messages in this thread, it appears that postfix's
sendmail at least in the version I'm using postfix-2.2.11 it wants to
add missing header lines to the end of the header (or first available
empty line in the text it is passed). Not only that, it seams to want
to append two crlf's after it appends those two lines. When I test with
sendmail's
If I compose a simple text message for the body with no Mime or
anything else I still get the two lines appended. Here I use the perl
code above and have nothing in the body except "Hello World". I still
see Message-Id and Date: lines appended with 2 crlf after them.
Postfix Sendmail:
==========================
From: xxx AT xxx DOT net
To: xxx AT xxxx DOT com
Subject: Test
References: <019b01c7da07$de48fce0$0200810a AT xxx DOT net>
In-Reply-To: <019b01c7da07$de48fce0$0200810a AT xxxx DOT net>
X-Loop: Postfix Admin Virtual Vacation
Message-Id: <20070808220253.7523D57E47 AT xxx.xxxx DOT com>
Date: Wed, 8 Aug 2007 18:02:53 -0400 (EDT)
Hello World
==========================
Using sendmail's executable with everything the same I get:
======================================
Date: Wed, 8 Aug 2007 18:30:10 -0400
Message-Id: <l78MUAfw005752 AT xxx.xxxx DOT com>
From: xxxxx AT xxxxxx DOT net
To: vwheelock AT usacsp DOT com
Subject: Test
References: <46BA43F6.9030200 AT xxxx DOT com>
In-Reply-To: <46BA43F6.9030200 AT xxxx DOT com>
X-Loop: Postfix Admin Virtual Vacation
Hello World
=============================================
Nowhere did I put the "Message-Id" or "Date" lines in the message, so
Postfix sendmail as well as Sendmail's sendmail appended them, just in
different locations. For text based messages, this is fine, but the
problem is when you need to add MIME (believe me I know how to
construct a proper MIME message) and view in Outlook. The lines are
appended in my opinion incorrectly. This is my complaint and probably
won't go anywhere. Since I can make this work with sendmail's version,
I can do that.
However, if someone can point to a small perl script without extra
libraries that does the simplest MIME encoded message, I would love to
see it work with Postfix's sendmail and render fine in Outlook.
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