After you created your items database you need apply list to form fields.
Go to your WordPress --> Dashboard --> Contact --> Contact Forms edit the form which you wanted to apply blacklist / white list / email list.
Click "Blacklist Settings" tab to apply blacklist / white list / email list to form fields.
When check a list type then all lists under it will be listed out. For blacklist and white list the comparison is required while action is required for email list.
Comparison for blacklist & white list let you chose the logic of how users input match your item.
- Same means the length and characters all same with any item in the list you chosen.
- Contains means the users input contain with any item in the list you chosen.
Case-insensitive Same:itEM1 MATCHS item1
Case-insensitive Contains:itEm1 and item2 MATCHS item1
Case-sensitive Same:item1 MATCHS item1
Case-sensitive Contains:item1 is our capital MATCHS item1
Comparison for email list let you chose to allow submitting or block submitting.
- Allow only user's input match an email or email domain name in the list then it will be allowed to submit while other input will be blocked ( disable notification ). You may use this to make a only invited users can register form.
- Block means if users' input match an email or email domain name in the list then it will be blocked to submit ( disable notification ). You may use this to prevent spam comments or block competitor's email.