Package: courier-imap
Version: 4.3.0.20081027-1
courier-imap will report an incorrect RFC822.SIZE to clients in
certain cases, causing them to lose the remainder of the message,
which may be a substantial part of the message.
Clients who take courier-imap's word for RFC822.SIZE, e.g.,
squirrelmail, fetchmail, will truncate the message. Clients who don't,
e.g., getmail, will deliver the whole message.
To test, use the following program to create a message in your
Maildir/new, and download it via courier-imap with your client.
E.g., getmail --trace shows
command FETCH ('1:1', '(UID RFC822.SIZE)') response ['1 (UID 1 RFC822.SIZE
91766)']
command uid FETCH ('1', '(RFC822)') response [('1 (UID 1 RFC822 {204926}'...
1 messages (91766 bytes) retrieved
When indeed the source and destination are actually larger:
-rw-r--r-- 1 199590 Feb 5 02:04 Maildir/cur/goo:2,S
-rw------- 1 199737 Feb 5 02:06
Mldir/new/1202148403.M722359P7032Q0R99925aad42b3fca6.jidanni2
Upon investigation, one finds the reported RFC822.SIZE constantly
truncates at part 150 of multipart/digest, no matter how the content
differs (except if the total message size is small, causing the bug to
not be triggered.)
#!/usr/bin/perl
use strict;
use warnings FATAL => 'all';
use MIME::Entity;
use constant N => 333;
my $top = MIME::Entity->build( Type => "multipart/digest", );
$top->preamble( [ "This should have ", N, " parts.\n" ] );
for ( 1 .. N ) {
my $part = MIME::Entity->build(
Type => 'message/rfc822',
'Content-Type' => undef,
'Content-Disposition' => undef,
'Content-Transfer-Encoding' => undef,
Top => 0,
Data => "Subject: Bla $_
Date: Mon, 04 Feb 2008 15:50:08 +0200
From: Bllla <[EMAIL PROTECTED]>
X-Spam-Status: Yes, score=34.5 required=4.0 tests=DYN_RDNS_AND_INLINE_IMAGE,
FH_HELO_EQ_D_D_D_D,FORGED_OUTLOOK_HTML,HELO_DYNAMIC_IPADDR2,HTML_MESSAGE,
HTML_TAG_BALANCE_HEAD,J_CHSET3,J_SINGLE_FROM,MIME_HTML_ONLY,RATWARE_RCVD_PF,
RDNS_DYNAMIC,TVD_RCVD_IP,UNWANTED_LANGUAGE_BODY,URIBL_BLACK,URIBL_OB_SURBL,
URIBL_RHS_DOB,URIBL_SBL,URIBL_SC_SURBL autolearn=disabled
version=3.2.3-wed_jan_16_09_06_33_2008.jidanni2
X-Spam-Languages: ru.windows-1251
X-Size: 21518
X-File: zzzzzzzzz
"
);
$top->add_part($part);
}
$top->print( \*STDOUT );
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