Register - Confirmation mail

[Tata]

I use the register plugin on one website. There the newcomers can register and both they and me receive confirmation emails. I hade till now set wrongly my address (left postmaster@example.com). So I have got error messages

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

postmaster@example.com
retry timeout exceeded

------ This is a copy of the message, including all the headers. ------

Return-path: <webmaster@cmsimple.sk>
Received: from [92.240.253.8] (helo=web3s9.dnsserver.eu)
by smtpout5.dnsserver.eu with esmtp (Exim 4.84 (FreeBSD))
(envelope-from <webmaster@cmsimple.sk>)
id 1aWXG4-0000C9-Nk; Thu, 18 Feb 2016 23:41:12 +0100
...

I can't find where is the other address defined - webmaster@cmsimple.sk. I haven't found it in any config nor language file.

SOLVED
Finally, downloading the whole website and searching in Windows trough all *php files for the string, I have found it in advancedform/config/defaultconfig.php.

[cmb]

Hi Tata,

I can't find where is the other address defined - webmaster@cmsimple.sk. I haven't found it in any config nor language file.

The other address is the one given by the registering user, if I'm not mistaken.

[Tata]

Probably not. I had defined my address to be awarned about new members. And always when new one has been registered, I got also this message as undeliverable. There was also the address of the new member in this message body included.But now it seems to work.