[wp-trac] [WordPress Trac] #11988: VERP does not work

[WordPress Trac]

#11988: VERP does not work
---------------------------------+------------------------------------------
 Reporter:  vladimir_kolesnikov  |       Owner:            
     Type:  defect (bug)         |      Status:  new       
 Priority:  normal               |   Milestone:  Unassigned
Component:  Mail                 |     Version:  3.0       
 Severity:  normal               |    Keywords:  has-patch 
---------------------------------+------------------------------------------
 Suppose that we have a custom hook for "phpmailer_init" action which
 enables VERP support:

 {{{
 function phpmailer_init($phpmailer)
 {
     $phpmailer->IsSMTP();
     if (!$phpmailer->smtp) {
         $phpmailer->smtp = new SMTP();
     }

     $phpmailer->smtp->do_verp = true;
 }
 }}}

 But VERP support (in wp-includes/class-smtp.php) is a bit buggy: here's
 the transcript the session:

 {{{
  Out: 220 example.com ESMTP Postfix
  In:  EHLO example.com
  Out: 250-example.com
  Out: 250-PIPELINING
  Out: 250-SIZE 10240000
  Out: 250-ETRN
  Out: 250-XVERP
  Out: 250-ENHANCEDSTATUSCODES
  Out: 250-8BITMIME
  Out: 250 DSN
  In:  MAIL FROM:<mailer at example.com>XVERP
  Out: 501 5.1.7 Bad sender address syntax
  In:  RSET
  Out: 250 2.0.0 Ok
 }}}

 You can see that the server (Postfix) supports VERP (250-XVERP) but the
 MAIL FROM line is malformed - it lacks space character between ">" and
 "XVERP":

 {{{
 220 example.com ESMTP Postfix (Ubuntu)
 EHLO example.com
 250-example.com
 250-PIPELINING
 250-SIZE 10240000
 250-ETRN
 250-XVERP
 250-ENHANCEDSTATUSCODES
 250-8BITMIME
 250 DSN
 MAIL FROM:<mailer at example.com> XVERP
 250 2.1.0 Ok
 RSET
 250 2.0.0 Ok
 QUIT
 221 2.0.0 Bye
 }}}

 You can see that the space character solves the problem.

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/11988>
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