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> 
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# Method name: blockByEmail(email: string)

# Method package: wixMembersBackend

# Method menu location: wixMembersBackend --> Authentication --> blockByEmail

# Method Link: https://dev.wix.com/docs/velo/apis/wix-members-backend/authentication/block-by-email.md

# Method Description:

Blocks a member from logging in to the site.


The `blockByEmail()` function returns a Promise that resolves
when the specified member is blocked.

To unblock the member and allow them to log in to the site, use
[`approveByEmail()`](https://dev.wix.com/docs/velo/api-reference/wix-members-backend/authentication/approve-by-email.md).



# Method Code Examples:

*** Note: do not assume any prop names or enum values other than the ones in the example.

## Block a member

```javascript
import { Permissions, webMethod } from 'wix-web-module';
import { authentication } from 'wix-members-backend';

export const myBlockByEmailFunction = webMethod(Permissions.Anyone, (email) => {
  return authentication.blockByEmail(email)
    .then(() => {
      console.log('Email blocked from site membership');
    })
    .catch((error) => {
      console.error(error);
    });
});
```

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