Below you find the form content you just generated.
Click on the "Copy" button - that becomes visible when you hover the code - to copy the content.
Paste the content in a textfile (use notepad.exe, NOT ms-word) and save it on your computer.
Name the file form_your_name.htt and upload it to the directory {website_root}/modules/miniform/templates/ on your webserver.
<div class="miniform">
<div class="{MESSAGE_CLASS}">{STATUSMESSAGE}</div>
<div class="{FORM_CLASS}">
<small> </small>
<br/>
<form name="form_{SECTION_ID}" id="form_{SECTION_ID}" method="post" action="{URL}">
<input name="miniform" type="hidden" value="{SECTION_ID}"/>
<input name="header" type="hidden" value="LU-Sammelmail"/>
<input name="mf_timestamp" type="hidden" value="{DATE} {TIME}"/>
{ASPFIELDS}
<div class="onethird">
<label for="betreff"><span>Betreff <span>*</span></span>
<input placeholder="Worum es geht" class="{BETREFF_ERROR}" type="text" id="betreff" name="mf_r_betreff" value="{BETREFF}" />
</label>
</div>
<div class="full">
<label for="nachricht"><span>Nachricht <span>*</span></span>
<textarea placeholder="Was ich schon immer mal sagen wollte..." rows="5" cols="80" class="{NACHRICHT_ERROR}" id="nachricht" name="mf_r_nachricht">{NACHRICHT}</textarea>
</label>
</div>
<div class="full">
<button class="submit" name="Submit" type="submit">Absenden</button>
</div>
</form>
</div>
</div>