E-mail replies going to spam folder.

In the "Webform mail settings"

1. E-mail to address: I have entered my domain name email address (info@mydomain.com) where I want form details to be sent.
2. E-mail from name: Component as First Name (textfield) that I created.
3. E-mail from address: Component as E-mail (email) that I created.
4. E-mail subject: Component as Subject (textfield) that I created.

In case of "E-mail Component" I have checked "E-mail a submission copy".

Now after submission, I get the email in inbox folder of info@mydomain.com and in the inbox folder of receipts email address, where I used gmail account for tests. Till now everything is fine.

But when I replied to the email that I got in inbox folder of info@mydomain.com, the email was delivered to spam folder of gmail, which is really wired.

And one more thing, after hitting submit button I'm getting a big details or "E-mail Headers" with confirmation message at the very bottom of it.

E-mail Headers:

Array
(
    [X-Mailer] => Drupal Webform (PHP/5.2.5)
)
To: xxxx@gmail.com
From: "xxxx" <xxxx@gmail.com>
Subject: test2
E-mail Body: 
Submitted on 08/25/2008 - 00:05
Submitted by anonymous user: [xx.xx.169.215]

This code is very big

Is there a way to make it not to appear after a user hits a submit button.

Any help will be appreciated.