ZF-195: Ability to set the MAIL FROM: to specify the Return-path when using SMTP

Issue Type: Improvement Created: 2006-07-06T03:26:45.000+0000 Last Updated: 2007-07-05T14:43:12.000+0000 Status: Resolved Fix version(s): - 0.2.0 (29/Oct/06)

Reporter: Matthew Delmarter (mdelmarter) Assignee: Matthew Weier O'Phinney (matthew) Tags: - Zend_Mail

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The ability to specify the Return-path is quite useful, especially when wanting to direct bounces to a different address from the Sender address. From my research and testing the MAIL FROM command in SMTP allows the Return-path to be specifed.

It would be great if there was a way to specify the email address used by the following method in Mail/Transport/Smtp.php.

public function mail_from($from_email)
    $this->_send('MAIL FROM: <'.$from_email.'>');

I hardcoded the $from_email and got the behaviour I was looking for. We really need to have a method that allows this to be set on the fly as individual emails are being sent - maybe something like $mail->setReturnPath()...


Posted by Matthew Weier O'Phinney (matthew) on 2006-07-07T21:48:42.000+0000

Not a blocker, as the mail component can be used without this feature. However, it would be nice to have, and has been slated for the 0.2.0 release.

Posted by Gavin (gavin) on 2006-07-25T11:16:31.000+0000

It should be noted in the final documentation that using an email address in SMTP's MAIL FROM that differs from the mail header "From:" will increase the likelihood that anti-spam systems will file that email into the "junk/spam" folder.

Note that the mail header's "From:" can use any name in combination with an email address identical to whatever is desired for MAIL FROM. For example,

<pre class="highlight">
From:  "My Name" 

Thus, setting a different email address in MAIL FROM than in the "From:" mail header is not considered "best practice", and generally should be discouraged. The "Reply-To:" header solves the issue of someone replying to the bounce address, when the bounce address is using for the "From:" and "MAIL FROM".

Posted by Matthew Weier O'Phinney (matthew) on 2006-07-28T12:57:00.000+0000

Reply-To is a non-standard mail header; Return-Path is standard and addressed in RFC-2821 as the appropriate place to set an alternate address for bouncebacks.

I've updated Zend_Mail and Zend_Mail_Transport_Smtp to in commit 927 in SVN to address this; tests were also written and pass.

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