Double Opt-In: Verified Subscriber Lists

Build high-quality email lists with double opt-in verification. Reduce bounces, improve deliverability, and ensure genuine subscriber consent automatically.

With SendSeven, enable double opt-in in settings and customize the confirmation email with a responsive, brand-colored template. New subscribers get a confirmation email with a time-limited token link; only after clicking do they become verified. Per-channel consent for email, WhatsApp, and SMS, with automatic unsubscribe via link or STOP keyword. Included in every plan.

Single opt-in leads to fake signups, typos, and spam complaints. Without email verification, lists become polluted with invalid addresses, hurting deliverability.

SendSeven provides double opt-in with customizable confirmation email templates. New subscribers receive a secure confirmation link; only confirmed subscribers receive campaigns.

Improved list quality and deliverability

Go to Settings > Email Settings. Toggle "Require Double Opt-In" to enabled.

Go to Reach > Email > Double Opt-In Templates. Edit the default template or create a custom one.

Use {{confirmation_url}}, {{email}}, {{company_name}} in your template. The URL is auto-generated.

Subscribe to your list and check your inbox for the confirmation email. Click the link to verify it works.

Manage double opt-in templates and confirmations via API.

Create a branded double opt-in confirmation template

Subscribe contact and automatically trigger confirmation email