Question How to control smtp.mailfrom in mails sent from Plesk?

[Kroptokin]

Server operating system version

AlmaLinux 9.6 (Sage Margay)

Plesk version and microupdate number

Plesk Obsidian 18.0.70 Update #1 Web Host Edition

I am sending mail from a Plesk Server using PHPMailer.

I have several domains on this server. I am connecting to the mail server with this code:

$mail->Host = 'localhost';
$mail->SMTPAuth = true;
$mail->Username = '[email protected]';
$mail->Password = 'b';
$mail->SMTPSecure = '';
$mail->Port = 25;
$mail->Sender = '[email protected]';
$mail->setFrom('[email protected]');

Username is an email account on one domain.

In the emails I see this:

Authentication-Results: spf=pass (sender IP is 77.68.123.62)
smtp.mailfrom=domain2.com; dkim=fail (no key for signature)

domain2.com is indeed hosted on the same server. But I want this field to be domain1. I thought it might be to do with using Sender in PHPMailer. But no.

It looks to me like it could be something I need to fix in Plesk.

Does anybody have any ideas?

 

[scsa20]

I do not believe that is a plesk issue but probably how you implemented PHPMailer. Looking over the doc over GitHub - PHPMailer/PHPMailer: The classic email sending library for PHP shows me that the initial configs should be as follow (mind you this is based off of the latest version):

    $mail->isSMTP();                                            //Send using SMTP
    $mail->Host       = 'smtp.example.com';                     //Set the SMTP server to send through
    $mail->SMTPAuth   = true;                                   //Enable SMTP authentication
    $mail->Username   = '[email protected]';                     //SMTP username
    $mail->Password   = 'secret';                               //SMTP password
    $mail->Port       = 25;                                    //TCP port to connect to; use 587 if you have set `SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS`

    //Recipients
    $mail->setFrom('[email protected]', 'From Name');
    $mail->addReplyTo('[email protected]', 'From Name');

Alternatively you could just use Sendmail (built in PHP function).

$mail->isSendmail();
$mail->setFrom('[email protected]', 'From Name');
$mail->addReplyTo('[email protected]', 'From Name);

But I'm not tooooo familiar with PHP (I just use whatever is out there lol) but ye in either case, I'd double check how you've implemented it.

 

[Kroptokin]

thanks @scsa20 - to be honest, I already have something like this using PHPMailer, and I already tried mail() (that was why I switched to PHPMailer). I need to solve this problem, so I will keep looking. When I find the result I will post it back here.

 

[Kroptokin]

OK. Thanks again and sorry. It turns out the mailfrom header was being set because I was forwarding the emails. domain1 => [email protected] => a personal email. Once I send the emails directly from Plesk, using the above code, with no forwarding step I see smtp.mailfrom=domain1.com