mikeslasher

Hello guys.

I also faced that problem.
Although not having my site hosted at Dreamhost, the reference to their support page made here really helped.

Steps that fixed my problem:

1. setup email wordpress@mydomain
2. Install WP-Mail-SMTP
3. Setup WP-Mail-SMTP with email above. Careful because some hosting providers are changing from port 25 to 587 in SMTP, due to security issues
4. In CF7, changed the following, in the Mail area of the form:

1. From: [your-name] <wordpress@mydomain>
2. Additional Headers: Reply-To: [your-name] <[your-email]>

This way, it passes the spam control because it’s a valid email address sending the form.
In addition, the person who receives the e-mail can just hit Reply button to send an email back to the person who filled the form.

Hope it will work for you.