Screenshots from received email in Joomla 4.1.3-dev and Joomla 3.10.8:

The original report in the Joomla forum mentions "when "Reply to Email" / "Reply to Name" are set, they are not coded by Joomla 4 in the test message or any of Joomla 4 email templates."

I verified this by testing the Account Details message for a new user in Joomla 4.1.3-dev and Joomla 3.10.8.

Just a guess but maybe the issue originates from the processing of the email templates, introduced in Joomla 4.

Yeah, there a diference, J3 use $mail->sendMail(), wich care about ReplyTo:

However in J4 we use MailTemplate that use own send() method, where global ReplyTo is ignored:

@Fedik thank you for the explanation. Shouldn't Mail Templates behave the same way as mail in Joomla 3 and use the global settings Reply To and Reply To Name?

I also think it should use global setings when "local" not exists for ReplyTo.

Hi,
Is there a way to know when that bug will be corrected? It is still the same problem with Joomla version 4.2.8
Thanks

@cathelin45 no indication until one of the developers creates a Pull Request (PR). Two successful tests are required before the fix is included in the next version.

A related issue was reported today with the current version of VirtueMart, 4.0.12.10777. VirtueMart sets the Reply-To header by calling the function addReplyTo() in libraries/src/Mail/Mail.php, which then passes the details to the addReplyTo() function in the PHPMailer library, but PHPMailer rejects the email address:
0 - Invalid address: (Reply-To)

I will try to test this last use case with VirtueMart, narrow it down and get more details. The forum topic is
Issue with Reply-To address in PHPMailer with VirtueMart

It turns out that the Reply-To email address forwarded by VirtueMart's Recommend to Friend form via Joomla addReplyTo() to addReplyTo() in PHPMailer must have been blank, which explains the error message.

@Fedik @cathelin45,
Just tested a patch in Joomla 4.2.8-dev (shouldn be called 4.2.9-dev?) of 19 February. It worked with the Sent Test Mail and the Forgot Your Password email.

libraries/src/Mail/MailTemplate.php lines 279-281:

        if ($this->replyto) {
            $this->mailer->addReplyTo($this->replyto->mail, $this->replyto->name);
        }

change to:

	if ($this->replyto) {
            $this->mailer->addReplyTo($this->replyto->mail, $this->replyto->name);
        } elseif ($app->get('replyto')) {
            $this->mailer->addReplyTo($app->get('replyto'), $app->get('replytoname'));		
	}
```<hr /><sub>This comment was created with the <a href="https://github.com/joomla/jissues">J!Tracker Application</a> at <a href="https://issues.joomla.org/tracker/joomla-cms/37473">issues.joomla.org/tracker/joomla-cms/37473</a>.</sub>

@toivo that should work I think

@Fedik would you like to create a PR from that? I do not have the tools or skills to do that.

I will try over the week, if no one will be faster

@Fedik thank you!

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wrote:

I will try over the week, if no one will be faster

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Thank you!

Hi Toivo,
Many thanks for that. "Reply to" is now correctly coded with you patch; it now works alright.

Please test #39893