PHP Clear "reply-to:" for mail

Question

Example:

email 1 has email to reply to as `[email protected]`
email 2 has email to reply to as `[email protected]`

My current code:

if($this->teacherEmail && $this->teacher_reply_enable)
    $this->mail->AddReplyTo($this->teacherEmail, $this->schoolTitle);
else 
    $this->mail->AddReplyTo($this->schoolEmail, $this->schoolTitle);

$this->mail->Subject = $this->subject;
$this->mail->msgHTML($this->getMessage());
$this->mail->AltBody = strip_tags($this->message);
$this->mail->addAddress($this->to, $this->to_name);         
foreach($this->attachments as $item){   
    $email_attachment = DOC_ROOT.$item->path.$item->orig;
    $email_attachment_title = $item->name;
    $this->mail->addAttachment($email_attachment,$email_attachment_title);
}
if (!$this->mail->send()) {
    return false;
} else {
    return true;
}

The problem i'm having is that email 1 has been sent successfully the reply-to: is [email protected], then email 2 is sent and the reply-to: is both [email protected] and [email protected].

I want it to reset the reply-to: for each email sent so that it doesn't have the issue of having two reply-to:'s

Answer 1

According to the documentation there is a method called clearReplyTos. You could try calling that first as below:

$this->mail->clearReplyTos();
if($this->teacherEmail && $this->teacher_reply_enable)
    $this->mail->AddReplyTo($this->teacherEmail, $this->schoolTitle);
else 
    $this->mail->AddReplyTo($this->schoolEmail, $this->schoolTitle);

I haven't used it myself but just a quick skim of the doc pages brought that up.