Regal Send Setup Guides

Updated September 20, 2026

Regal Send setup guides help you configure a supported mailer without exposing passwords, API keys or OAuth client secrets. Open Regal Send → Setup Guides to follow the current steps for your chosen provider.

Regal Send setup guides for each mailer#

Other SMTP#

1. Choose Other SMTP in Regal Send Settings.
2. Enter the host, port, encryption method and credentials supplied by your email provider.
3. Save the settings and use Test Email.

Use an app password where your provider requires one. A successful result means the transport accepted the message. It does not prove the recipient received it.

Elastic Email#

1. Verify the sender email address or domain in Elastic Email.
2. Create a key restricted to the SendHttp access needed for transactional sending.
3. Save the key in Regal Send and send a Test Email.

See the Elastic Email REST API documentation for provider-side details.

Google / Gmail#

1. Create a Web OAuth client and enable the Gmail API in Google Cloud.
2. Copy the exact Google redirect URI from Regal Send into the OAuth client.
3. Save the Client ID and client secret, then choose Connect Google.

Regal Send requests only gmail.send and offline access. Google documents the Gmail API scopes.

Microsoft 365 / Outlook#

1. Create a Microsoft Entra App Registration with the account audience that matches your intended users.
2. Add the exact Microsoft redirect URI shown by Regal Send as a Web redirect URI.
3. Add delegated Microsoft Graph Mail.Send, save the app details, and choose Connect Microsoft.

Tenant administrators may need to grant consent. Refer to the Microsoft Entra app-registration guidance.

Common setup checks#

• Use HTTPS for Google and Microsoft OAuth callbacks.
• Copy the full callback URI exactly, including its path.
• Use Test Email after saving any mailer change.
• Check Email Logs for a redacted failure reason if a test fails.

Never paste credentials into email or support tickets. Regal Send keeps saved secrets encrypted and does not render them back into Settings.