# Custom Email Provider
To send Authgear emails to end-users with your own domain, e.g. `support@myapp.com`. You will need to configure the external SMTP provider.
Authgear currently supports **SendGrid** and other custom SMTP Providers.
## Send from an email address under your domain
The sender address can be configured by changing the value of the`email.default.sender` key in the localization JSON. Go to **Portal** > **Branding** > **Custom Text** and add/change the value of `email.default.sender` to your own email address, for example `no-replay@myapp.com`, and **Save** the settings. The value can be set separately for each locale.
## Sender domain authentication
Before adding the email service provider to Authgear, make sure the sender domain is verified and authenticated on the email service. For example, your domain `myapp.com` should be configured in your SendGrid account so Authgear can use the account to send emails with `no-reply@myapp.com`.
Follow the instructions from the email service provider for setting up your domain:
* [How to set up domain authentication on SendGrid](https://docs.sendgrid.com/ui/account-and-settings/how-to-set-up-domain-authentication)
## Configure the external SMTP provider
The external SMTP provider can be set up in **Portal** > **Advanced** > **Custom Email Provider**. Enable the **Use my own provider** toggle to see the fields.
### Use SendGrid as external SMTP provider
1. Log in to your SendGrid account
2. Create API Key in **Settings** > **API Keys**
3. Set the **API Key Name** for your reference the choose **Restricted Access** under **API Key Permissions**
4. Under **Access Details,** expand **Mail Send** and give **Full Access** to the **Mail Send** permission
5. Click **Create & View.** Copy the API key created and save it somewhere safe
6. In Authgear **Portal**, navigate to **Custom Email Provider**
7. Enable **Use my own provider**.
8. Choose **SendGrid** and paste the API key you copied, and **Save**
9. You can send a test email to check the configuration
### Using other SMTP Providers
Other SMTP providers can be set manually by providing the **Host**, **Port**, **Username**, and **Password**. They can be obtained from the documentation or instructions from your email service provider.
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