How to send invoices from your own domain

Quick answer

Sending invoices from your own domain requires two steps: first connect your email account in Settings & Apps > Emails, then enable the Email service (custom domain) toggle in Settings & Apps > Billing > Settings and select the connected account.

Who can do this

• Company Owners and Company Admins with access to Settings & Apps.
• You will need credentials for your email account (Google, Microsoft, or SMTP).

Step 1 — Connect your email account

1. Open Settings & Apps from the main navigation.
2. Select the Emails app.
3. Connect your email account — options include:

• Google Gmail — via Google account sign-in
• Microsoft Outlook / Microsoft 365 — via Microsoft account sign-in
• Custom SMTP — fill in the host, port, security, sender name, username, and password

1. Click Send a test email to confirm the setup works.
2. Click Save.

Step 2 — Enable the custom domain in Billing

1. Open Settings & Apps > Billing > Settings.
2. Under Send PDF invoice, find Email service (custom domain) and enable the toggle.
3. Select the connected email account from the dropdown.
4. Optionally, enter one or more addresses in Send invoice copy to to receive a copy of every invoice sent.
5. Click Save.

From this point, invoices are sent from your company’s email address.

Troubleshooting

Test email fails to send

Double-check the Host, Port, and Security settings. For Gmail, ensure an App Password is configured if two-factor authentication is enabled. For Outlook, verify that SMTP relay is allowed for your account.

Invoices are still being sent from the default address after setup

Confirm that the Email service (custom domain) toggle is enabled and the correct account is selected. Also check that you clicked Save.

Client invoice emails are landing in spam

Set up SPF, DKIM, and DMARC DNS records for your domain to improve email deliverability. Contact your email provider or domain registrar for guidance.

I do not know my email server credentials

For Gmail, use smtp.gmail.com on port 587 with TLS. For Outlook, use smtp.office365.com on port 587 with STARTTLS. Contact your IT administrator for company-managed accounts.