Currently there is no occurence of a "Reply-To"-header. I would like to change the code to:

 
$headers = "From: " . encode_mail_name($settings['forum_name'], $mail_charset, $mail_header_separator)." <".$settings['forum_email'].">". $mail_header_separator;
if($from == '')
{
$headers .= "Reply-to: " . mail_header_filter($from) . $mail_header_separator;
}

That way the sender ("From") is the forum in every case and a "Reply-to" header gets added, if a divergent senders address is set.

Tschö, Auge

I hope this will solve the problem. Will this fix be included in version 2.4.13?

/Tommy