Custom E-Mail Notifications // Remove "WordPress" from "From:" field…

hi,
i use your form with the standard settings and everything works fine.
now i have the following problem:
when i search in the recieved emails for a special one, i see only worpress and the admin mail.

i’ve tried to use the custom e-mail notifications, it works internally, but the email was not sent.
my custom e-mail notifications settings:
@start
To: info@domain.com
From: [item clientname] <[item clientemail]>
Reply-To: [item clientname] <[item clientemail]>
Subject: text …
MIME-Version: 1.0
Content-type: text/html
@message start
[template summary]
@message end
@end
(http://wordpress.org/support/topic/plugin-wordpress-form-manager-remove-wordpress-from-from-field)

as a workaround I have tried this:
http://wordpress.org/support/topic/plugin-wordpress-form-manager-change-sender-of-mail?replies=4

but nothing works.
I have my own server with SpamAssassin, suphp, other security tools. i have full access to php.ini. so, i can adjust each time the configuration of my server under safety aspects.

Is there any workaround to solve my problem?
thanks and best regards