#28038 [Com]: Sent incorrect RCPT TO commands to SMTP server

ID: 28038 Comment by: papercrane at reversefold dot com Reported By: jordi at jcanals dot net Status: Assigned Bug Type: Mail related Operating System: Windows PHP Version: 4.3.6 Assigned To: wez New Comment: Here's a possible patch for it. It's pretty simplistic, bit it should work: http://www.reversefold.com/sendmail.c.patch Full file: http://www.reversefold.com/sendmail.c NOTE: I haven't actually *tested* this, it may not even compile. If it doesn't, please send me a note and I'll try to fix it. Previous Comments: ------------------------------------------------------------------------ [2004-04-28 00:11:33] jordi at jcanals dot net Just to complement the coments: If you write an explicit Return-Path: header, this header is not considered by the mail function. The function changes this header to the one set on the sendmail_from address in php.ini. I thing this is just a behavior by desing, but could be an improvement if it use the Return-Path header in the future. Could not be tested on Linux. Sample: ======= PHP.INI ------- sendmail_from=php_ini@example.org Code ---- $header = "Return-Path: return@example.org\r\n"; $header .= "From: sender@example.org\r\n"; mail('recipient@example.org', 'subject', 'bla bla', $header); The sent headers are: From: sender@example.org To: recipient@example.org Return-Path: php_ini@example.org ------------------------------------------------------------------------ [2004-04-19 19:09:40] derick@php.net If you think it's a bug you may fix it :) ------------------------------------------------------------------------ [2004-04-19 15:17:15] wez@php.net It is a bug, since PHP is sending those headers by parsing the email. ------------------------------------------------------------------------ [2004-04-18 01:00:13] derick@php.net Mailing with PHP on Windows doesn't support this. Not a bug. ------------------------------------------------------------------------ [2004-04-17 19:14:01] jordi at jcanals dot net Description: ------------ In windows, and using an SMTP server, when you try to send a mail using the mail function the SMTP transaction will fail if you include recipient names. When including any recipient header in the following format (wich follows the RFC 2822), the mail function does not handle it properly: To: User Name <address@example.com> Cc: Other User <other@example.net> Bcc: Third User <third@example.org> Loking at the SMTP transaction, the PHP mail layer sends this RCPT commands wich do not folow the SMTP standard stated on RFC 2821: RCPT TO:<User Name <address@example.com>> RCPT TO:<Other User <other@example.net>> RCPT TO:<Third User <third@example.org>> Fails always with this environments: Tested on Windows XP, Apache 2.0.49, PHP 4.3.6 (Also in 4.3.4) Tested also on Windows 2000, IIS, PHP 4.3.6 Tested Using SMTP servers on Linux with Exim and Sendmail. Tested also using the default Windows 2000 SMTP server. Reproduce code: --------------- // SAMPLE 1: $to_recipient = "User Name <address@example.com>"; $header = "Cc: Other User <other@example.net>\r\n"; $header .= "Bcc: Third User <third@example.org>\r\n"; mail($to_recipient, $subject, $body, $header); // FAILS with SMTP errors for all three recipients. SAMPLE 2: $to_recipient = "address@example.com"; $header = "To: User Name <recipient@example.com>\r\n"; $header .= "Cc: Other User <other@example.net>\r\n"; $header .= "Bcc: Third User <third@example.org>\r\n"; mail($to_recipient, $subject, $body, $header); FAILS on with SMTP error on the three recipients passed on the $header field. Expected result: ---------------- Expected that the mail layer exctracts only the mail address from recipients to send the SMTP commands: As seen on the RFC's 2821 and 2822, when sending a mail with the recipient headers formed like above, it is expected the mail layer to extract ONLY the email address to send the RCPT commands, and pass the headers without any change in the DATA command during the SMTP transaction. Example of the correct SMTP transaction for the above headers: RCPT TO:<address@example.com> RCPT TO:<other@example.net> RCPT TO:<third@example.org> DATA To: User Name <address@example.com> Cc: Other User <other@example.net> Bcc: Third User <third@example.org> Actual result: -------------- You get that error for all recipients with the recipient name: Warning: mail(): SMTP server response: 501 <SomeOne Name <someone@example.com>>: "@" or "." expected after "SomeOne" in mail.class.php on line 333 This error is produced when the mail layer is sending a wrong formed RCPT TO: command in the SMTP transaction. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=28038&edit=1