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Bug #26218 mail() sends extra "RCPT TO: <>" to smtp host
Submitted: 2003-11-12 09:36 UTC Modified: 2003-11-12 20:43 UTC
From: bzheng at us dot nomura dot com Assigned:
Status: Not a bug Package: Network related
PHP Version: 4.3.3 OS: W2k server/IIS 5/PHP in CGI mode
Private report: No CVE-ID: None
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From: bzheng at us dot nomura dot com
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 [2003-11-12 09:36 UTC] bzheng at us dot nomura dot com 
Description:
------------
calling mail() function causes PHP to send out an extra "RCPT TO: <>" command to the SMTP host.

Packet sniffer shows:
...
C:MAIL FROM:<some@somewhere.com>
S:250 2.1.0 <some@somewhere.com> Sender OK
C:RCPT TO:<aa@aa.com>
S:250 2.1.5 <aa@aa.com> Recipient OK
C:RCPT TO:<>
S:553 5.0.0 <> User address required

related entries in php.ini
[mail function]
; For Win32 only.
SMTP = mailhost.aa.com
; For Win32 only.
sendmail_from = some@somewhere.com


The weird thing is, the same code works on another machine that has exactly the same php.ini and php software as the machine having problems.

Reproduce code:
---------------
$result = mail( $t_recipient, "test", "test msg");

where $t_recipient is a valid SMTP email address.


Expected result:
----------------
$result == true;

Actual result:
--------------
$result == false;

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 [2003-11-12 09:49 UTC] bzheng at us dot nomura dot com 
just to clarify.
The code is:
$result = mail( "aa@aa.com", "sub", "msg");
 [2003-11-12 11:01 UTC] iliaa@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip
 [2003-11-12 15:24 UTC] bzheng at us dot nomura dot com 
tried and got the same result, now failing on both machines
 [2003-11-12 18:24 UTC] pollita@php.net 
Unable to replicate with PHP4-LATEST.

Is it possible your To: address has a coma at the end?  The way the Win32 sendmail code is written a "blank" recipient will be sent as just RCPT TO:<>.

Issue a var_dump( $t_recipient); prior to sending the mail to be certain it doesn't have a coma at the end.

Also, if you include headers with blank Cc: or Bcc: lines they will also exhibit this behavior.
 [2003-11-12 19:16 UTC] bzheng at us dot nomura dot com 
My mistake.
There is a line "BCC:\n" in the header.
I must have done something wrong in the testing.
My apologies, for wasting your time.
 [2003-11-12 20:43 UTC] iliaa@php.net 
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. 

Thank you for your interest in PHP.

User error.
 
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