[Plugin: Contact Form 7] Form does not send msgs

Hi

I used to use this example syntax at my contact form definitions:

<p>Your name (required)<br />
    [text* text-513 akismet:author] </p>

<p>Your e-mail (required)<br />
    [email* email-423 akismet:author_email] </p>

Once I uprated the plugin and WP to the newest versions, the contact form 7 plugin refuses to send messages. I get an error msg once I try to send any emails with it. It says the email could not be send and I should re-check the form. And the form in filled in correctly…

Once I change the code to:

<p>Your name (required)<br />
    [text* text-513] </p>

<p>Your e-mail (required)<br />
    [email* email-423] </p>

it starts to work. The Akismet plugin works ok (the newest version too).

Any solutions?

http://ww.wp.xz.cn/extend/plugins/contact-form-7/