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Subscription Types: Double Opt-in vs Single Opt-in

Compare double opt-in and single opt-in subscription methods and learn how to switch between them in Icegram Express to ensure high deliverability and...

When collecting email subscribers on your website, choosing the right opt-in method balances audience growth speed against email list hygiene and deliverability. Icegram Express supports both Single Opt-in and Double Opt-in.

Opt-in type configuration in Icegram Express settings

Opt-in type configuration in Icegram Express settings

Single Opt-in

Single opt-in is a one-step subscription process. When a visitor submits their email address in your subscription form, they are immediately added to your audience list with the Subscribed status.

  • Advantage: Frictionless signup experience that maximizes conversion rates and list growth.
  • Best for: E-commerce stores offering immediate coupon codes, high-trust audiences, or businesses prioritizing rapid audience expansion.
  • Risk: Higher likelihood of mistyped email addresses, spam bot submissions, and lower open rates over time.

Double opt-in is a two-step verification process:

  1. A visitor fills out your subscription form.
  2. Icegram Express sends an automated confirmation email containing a verification link.
  3. The visitor clicks the link to confirm their subscription.
  4. Once verified, their status updates to Subscribed and they begin receiving your campaigns.
  • Advantage: Guarantees that submitted email addresses are valid, monitored inboxes, drastically reducing bounce rates and spam complaints.
  • Compliance: Helps satisfy privacy regulations (like GDPR) in regions requiring documented consent.
  • Best for: Bloggers, publishers, SaaS, and businesses focused on maintaining high sender reputation and email deliverability.

How to Switch Opt-in Types

  1. In your WordPress admin dashboard, navigate to Icegram Express → Settings → General.
  2. Locate the Opt-in Type setting.
  3. Select either Single Opt-in or Double Opt-in from the dropdown menu.
  4. Click Save Settings at the bottom of the page.