[Home](./index.md) > [@firebase/auth](./auth.md) > [sendEmailVerification](./auth.sendemailverification.md)
## sendEmailVerification() function
Sends a verification email to a user.
Signature:
```typescript
export declare function sendEmailVerification(user: User, actionCodeSettings?: ActionCodeSettings | null): Promise;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| user | [User](./auth.user.md) | The user. |
| actionCodeSettings | [ActionCodeSettings](./auth.actioncodesettings.md) \| null | The [ActionCodeSettings](./auth.actioncodesettings.md). |
Returns:
Promise<void>
## Remarks
The verification process is completed by calling [applyActionCode()](./auth.applyactioncode.md).
## Example
```javascript
const actionCodeSettings = {
url: 'https://www.example.com/?email=user@example.com',
iOS: {
bundleId: 'com.example.ios'
},
android: {
packageName: 'com.example.android',
installApp: true,
minimumVersion: '12'
},
handleCodeInApp: true
};
await sendEmailVerification(user, actionCodeSettings);
// Obtain code from the user.
await applyActionCode(auth, code);
```