Steven Zahm@ Rene
re: how to add in the vcard a button: send Mail
Sorry, not possible without creating a custom template.
Do not discount the “old people” so easily. Studies have shown they tend to more adapt at basic web than then “young people”.
re: How can i change language files or subject and so on into german?
The POT file is available in the plugin folder for translation. You would use an app called POEdit to translate this file to German. There are many, many tutorials available on the net which walk you thru translating a plugin.
If you take the time to translate it, send me the files and I’ll include them with the plugin so you do not lose your translation work on updates.
re: is there any spam solution like captcha or something like this?
No captcha support. “old people” and “young people” alike universally hate this form of anti-spam. It is pretty much a guaranteed way to reduce usage of the contact form. There’s lots of studies supporting this available on the web.
That said, Contact already has 4 non-obtrusive anti-spam measure built in. See the product page under the Features section for more details. Contact has been for sale for more than a year now with no reported issues with spam. When and if it does, then I’ll add more drastic anti-spam measure (captcha).
Hope I have answered your questions thoroughly!