Hi all,

I have a web site called abc.com that using 2.4.x and it is very funny ...
After the user registation ...
The Active letter sometime it will send, but the most time, it will rejust back to the webmaster e-mail box.

Here are the e-mail on my mailbox


-----Original Message-----
From: Mail Delivery System [mailto:Mailer-Daemon@ns6.i-sams.com]
Sent: Thursday, June 17, 2010 6:28 PM
To: info@abc.com
Subject: Mail delivery failed: returning message to sender

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:

jc1979jcjc@gmail.com
Mail sent by user nobody being discarded due to sender restrictions in
WHM->Tweak Settings

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

Return-path:
Received: from nobody by ns6.i-sams.com with local (Exim 4.69)
(envelope-from )
id 1OPCKF-00084N-Ua
for jc1979jcjc@gmail.com; Thu, 17 Jun 2010 18:27:59 +0800
To: jc1979jcjc@gmail.com
Subject: User activation key for test0101
Date: Thu, 17 Jun 2010 18:27:59 +0800
From: =?utf-8?B?U1BFQy1SIE9mZmljaWFsIFdlYiBTaXRl?=
Message-ID:
X-Priority: 3
X-Mailer: PHPMailer (phpmailer.sourceforge.net) [version 2.0.0 rc3]
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"

Hello test0101,

Thanks for subscribing to abc Official Web Site. As a registered member your can:
- Send private messages among members
- Participate in discussion boards
- Get the latest news
- Submit content
- Much, much more....

The email address (jc1979jcjc@gmail.com) has been used to register an account.

To become a member of abc Official Web Site, please confirm your request by clicking on the link below:

http://www.abc.com/specrr2/register.php?op=actv&id=30&actkey=c69208de

-----------
Best Regards
SPEC-R Official Web Site
(http://www.abc.com/)
info@abc.com



=============================

I am wonder why my hosting server always received that e-mail tell me can't send to the end user who reg. on our web site?

How to fix it and how to check?

The user who registered was a spammer who gave you a "fake" email address.

XOOPS sends an email to this email address to make sure that the user is legit, but the email address fails since it doesn't exist, so you're getting back a notification about it.

See it as a positive sign - it's better to have an email bouncing back, than hundreds of spam messages on your Website.

To not attract SPAM, you may erase the email addresses.

Hi all,

But the jc1979jcjc@gmail.com is mine
Since I discovered many like that, so make a new e-mail from gmail.

And then using this account to my web site reg as new user.
Badly it display above message to me.

This is a security measure of gmail to fight SPAM. You can not send email from your server imposting it comes from a gmail address.
Use an email adres belonging to the domain of your site to send the email messages from.