dkutt on "[Plugin: Contact Form 7] Contact form response SOMETIMES goes Gmail spam"

I've sent hours trying to solve the problem before posting here.

My Contact form sends to a gmail address. Sometimes it is tagged as spam, sometimes it is fine.

Here is what I have tried.

1. Installed Akismet with API key (free)

<p>Your Name (required)
[text* your-name akismet:author] </p>

<p>Your Email (required)
[email* your-email akismet:author_email] </p>

2. In the To and From fields in the Mail tab I put my gmail address.

Thanks in advance for anyone's help.

http://wordpress.org/extend/plugins/contact-form-7/