反垃圾邮件字段的形式

Question

i am using vtiger and recieveing alot of spam on the website contact page i am using this code

        <form name="contact" action="REMOVED" method="post" accept-charset="utf-8"> 
    <input type="hidden" name="publicid" value="REMOVED"></input>
    <input type="hidden" name="name" value="contact"></input>        
    <label>First Name</label>
    <input type="text" value="" name="firstname"  required="true"></input>  
    <label>Phone</label>
    <input type="text" value="" name="phone"  required="true"></input>  
    <label>Last Name</label>
    <input type="text" value="" name="lastname"  required="true"></input>   
    <label>Email</label>
    <input type="text" value="" name="email"  required="true"></input>  
    <label><span>*</span>Street</label>
    <input type="text" value="" name="lane"  ></input>  
    <label><span>*</span>Postal Code</label>
    <input type="text" value="" name="code"  ></input>  
    <label><span>*</span>City</label>
    <input type="text" value="" name="city"  ></input>  
    <label>Country</label>
    <input type="text" value="" name="country"  ></input>   
    <label><span>*</span>County</label>
    <input type="text" value="" name="state"  ></input> 
        <label for="comments"><span>*</span>Description</label>d
    <textarea name="description" cols="40" rows="3" name="description"  id="description"></textarea>

the isue im having is the submit is to another URL thats not on the site and every anti spam method i have tried (12+1 =) still sends the form no matter the answer

i have deleted the links to the sites

Any help on this would be great

Answer 1

Add an extra field to the form that you do not use. Hide it with css.

Spam bots visiting the page will fill all fields, even if they are not shown.

If there's something in the hidden field, the whole form is spam, and you can discard the data.