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Set Up Custom Email (SMTP)

By default, Qivra PreOrder sends transactional emails (back-in-stock notifications, order confirmations) through the built-in Qivra email service. To send from your own domain or mailbox, configure a custom email provider under Settings > Custom Mail & SMTP.

  1. Open Qivra PreOrder from your Shopify admin
  2. Go to Settings
  3. Switch to the Custom Mail & SMTP tab

The tab lists the available email providers. You can either:

  • Use the default Qivra email service — no configuration needed
  • Configure Custom SMTP — your own mail server
  • Configure Resend — a transactional email API service

Once a custom provider is configured and tested, select it as the sending provider for your emails.

Click the SMTP provider card to open the configuration panel.

FieldDescription
HostYour email server hostname (e.g., smtp.gmail.com)
PortPort number (usually 465 for SSL or 587 for TLS)
UsernameYour email account username
PasswordYour email account password or app password
SecureEnable for SSL connections

Click Test And Save to verify the SMTP handshake and store the configuration. On success, the provider card shows as Configured.

If you use Resend for transactional email:

FieldDescription
API keyYour Resend API key
DomainThe sending domain verified in Resend

Click Test And Save after entering the credentials.

  • Host: smtp.gmail.com
  • Port: 587 (TLS)
  • Use an App Password (not your regular password)
  • Host: smtp.sendgrid.net
  • Port: 587
  • Username: apikey
  • Password: Your SendGrid API key
  • Host: smtp.mailgun.org
  • Port: 587
  • Use your Mailgun SMTP credentials
  • Double-check the host, port, and credentials
  • Some providers require an app password or API key instead of your account password
  • Make sure your provider allows SMTP access for your plan
  • Verify your domain with SPF and DKIM records at your provider
  • Prefer sending from your own custom domain rather than a free mailbox
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